have been attacked one time or other, and might have died of in a more advanced age.

The princess being assured of the usefulness of this operation, caused her own children to be inoculated. A great part of the kingdom followed her example, and since that time ten thousand children, at least, of persons of condition owe in this manner their lives to her Majesty and to the Lady Wortley Montague; and as many of the fair sex are obliged to them for their beauty.

Upon a general calculation, threescore persons in every hundred have the small-pox. Of these threescore, twenty die of it in the most favourable season of life, and as many more wear the disagreeable remains of it in their faces so long as they live. Thus, a fifth part of mankind either die or are disfigured by this distemper. But it does not prove fatal to so much as one among those who are inoculated in Turkey or in England, unless the patient be infirm, or would have died had not the experiment been made upon him. Besides, no one is disfigured, no one has the small-pox a second time, if the inoculation was perfect. It is therefore certain, that had the lady of some French ambassador brought this secret from Constantinople to Paris, the nation would have been for ever obliged to her. Then the Duke de Villequier, father to the Duke d'Aumont, who enjoys the most vigorous constitution, and is the healthiest man in France, would not have been cut off in the flower of his age.

The Prince of Soubise, happy in the finest flush of health, would not have been snatched away at five-and-twenty, nor the Dauphin, grandfather to Louis XV., have been laid in his grave in his fiftieth year. Twenty thousand persons whom the small-pox swept away at Paris in 1723 would have been alive at this time. But are not the French fond of life, and is beauty so inconsiderable an advantage as to be disregarded by the ladies? It must be confessed that we are an odd kind of people. Perhaps our nation will imitate ten years hence this practice of the English, if the clergy and the physicians will but give them leave to do it; or possibly our countrymen may introduce inoculation three months hence in France out of mere whim, in case the English should discontinue it through fickleness.

I am informed that the Chinese have practised inoculation these hundred years, a circumstance that argues very much in its favour, since they are thought to be the wisest and best governed people in the world. The Chinese, indeed, do not communicate this distemper by inoculation, but at the nose, in the same manner as we take snuff. This is a more agreeable way, but then it produces the like effects; and proves at the same time that had inoculation been practised in France it would have saved the lives of thousands.

LETTER XII

ON THE LORD BACON

Not long since the trite and frivolous question following was debated in a very polite and learned company, viz., Who was the greatest man, Cæsar, Alexander, Tamerlane, Cromwell, &c.?

Somebody answered that Sir Isaac Newton excelled them all. The gentleman's assertion was very just; for if true greatness consists in having received from heaven a mighty genius, and in having employed it to enlighten our own mind and that of others, a man like Sir Isaac Newton, whose equal is hardly found in a thousand years, is the truly great man. And those politicians and conquerors (and all ages produce some) were generally so many illustrious wicked men. That man claims our respect who commands over the minds of the rest of the world by the force of truth, not those who enslave their fellow-creatures: he who is acquainted with the universe, not they who deface it.

Since, therefore, you desire me to give you an account of the famous personages whom England has given birth to, I shall begin with Lord Bacon, Mr. Locke, Sir Isaac Newton, &c. Afterwards the warriors and Ministers of State shall come in their order.

I must begin with the celebrated Viscount Verulam, known in Europe by the name of Bacon, which was that of his family. His father had been Lord Keeper, and himself was a great many years Lord Chancellor under King James I. Nevertheless, amidst the intrigues of a Court, and the affairs

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of his exalted employment, which alone were enough to engross his whole time, he yet found so much leisure for study as to make himself a great philosopher, a good historian, and an elegant writer; and a still more surprising circumstance is that he lived in an age in which the art of writing justly and elegantly was little known, much less true philosophy. Lord Bacon, as is the fate of man, was more esteemed after his death than in his lifetime. His enemies were in the British Court, and his admirers were foreigners.

When the Marquis d'Effiat attended in England upon the Princess Henrietta Maria, daughter to Henry IV., whom King Charles I. had married, that Minister went and visited the Lord Bacon, who, being at that time sick in his bed, received him with the curtains shut close. "You resemble the angels," said the Marquis to him; "we hear those beings spoken of perpetually, and we believe them superior to men, but are never allowed the consolation to see them."

You know that this great man was accused of a crime very unbecoming a philosopher: I mean bribery and extortion. You know that he was sentenced by the House of Lords to pay a fine of about four hundred thousand French livres, to lose his peerage and his dignity of Chancellor; but in the present age the English revere his memory to such a degree, that they will scarce allow him to have been guilty. In case you should ask what are my thoughts on this head, I shall answer you in the words which I heard the Lord Bolingbroke use on another occasion. Several gentlemen were speaking, in his company, of the avarice with which the late Duke of Marlborough had been charged, some examples whereof being given, the Lord Bolingbroke was appealed to (who, having been in the opposite party, might perhaps, without the imputation of indecency, have been allowed to clear up that matter): "He was so great a man," replied his lordship, "that I have forgot his vices."

I shall therefore confine myself to those things which so justly gained Lord Bacon the esteem of all Europe.

The most singular and the best of all his pieces is that which, at this time, is the most useless and the least read, I mean his Novum Scientiarum Organum. This is the scaffold with which the new philosophy was raised; and when the

edifice was built, part of it at least, the scaffold was no longer of service.

The Lord Bacon was not yet acquainted with Nature, but then he knew, and pointed out, the several paths that lead to it. He had despised in his younger years the thing called philosophy in the Universities, and did all that lay in his power to prevent those societies of men instituted to improve human reason from depraving it by their quiddities, their horrors of the vacuum, their substantial forms, and all those impertinent terms which not only ignorance had rendered venerable, but which had been made sacred by their being ridiculously blended with religion.

He is the father of experimental philosophy. It must, indeed, be confessed that very surprising secrets had been found out before his time-the sea-compass, printing, engraving on copper plates, oil-painting, looking-glasses; the art of restoring, in some measure, old men to their sight by spectacles; gunpowder, &c., had been discovered. A new world has been sought for, found, and conquered. Would not one suppose that these sublime discoveries had been made by the greatest philosophers, and in ages much more enlightened than the present? But it was far otherwise; all these great changes happened in the most stupid and barbarous times. Chance only gave birth to most of those inventions; and it is very probable that what is called chance contributed very much to the discovery of America; at least, it has been always thought that Christopher Columbus undertook his voyage merely on the relation of a captain of a ship which a storm had driven as far westward as the Caribbean Islands. Be this as it will, men had sailed round the world, and could destroy cities by an artificial thunder more dreadful than the real one; but, then, they were not acquainted with the circulation of the blood, the weight of the air, the laws of motion, light, the number of our planets, &c. And a man who maintained a thesis on Aristotle's "Categories," on the universals a parte rei, or such-like nonsense, was looked upon as a prodigy.

The most astonishing, the most useful inventions, are not those which reflect the greatest honour on the human mind. It is to a mechanical instinct, which is found in (G)

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many men, and not to true philosophy, that most arts owe their origin.

The discovery of fire, the art of making bread, of melting and preparing metals, of building houses, and the invention of the shuttle, are infinitely more beneficial to mankind than printing or the sea-compass: and yet these arts were invented by uncultivated, savage men.

What a prodigious use the Greeks and Romans made afterwards of mechanics! Nevertheless, they believed that there were crystal heavens, that the stars were small lamps which sometimes fell into the sea, and one of their greatest philosophers, after long researches, found that the stars were so many flints which had been detached from the earth. In a word, no one before the Lord Bacon was acquainted with experimental philosophy, nor with the several physical experiments which have been made since his time. Scarce one of them but is hinted at in his work, and he himself had made several. He made a kind of pneumatic engine, by which he guessed the elasticity of the air. He approached, on all sides as it were, to the discovery of its weight, and had very near attained it, but some time after Torricelli seized upon this truth. In a little time experimental philosophy began to be cultivated on a sudden in most parts of Europe. It was a hidden treasure which the Lord Bacon had some notion of, and which all the philosophers, encouraged by his promises, endeavoured to dig up.

But that which surprised me most was to read in his work, in express terms, the new attraction, the invention of which is ascribed to Sir Isaac Newton.

We must search, says Lord Bacon, whether there may not be a kind of magnetic power which operates between the earth and heavy bodies, between the moon and the ocean, between the planets, &c. In another place he says either heavy bodies must be carried towards the centre of the earth, or must be reciprocally attracted by it; and in the latter case it is evident that the nearer bodies, in their falling, draw towards the earth, the stronger they will attract one another. We must, says he, make an experiment to see whether the same clock will go faster on the top of a mountain or at the bottom of a mine; whether the strength of the weights