Not to speak, at present, of many other advantages, I shall barely mention that in regard to letters and the sciences; far the greatest number of the best and most celebrated books extant, were written during that period of life, and those ten years, which some make it their business to undervalue, in order to give a loose to their appetites. Be that as it will, I would not act like them. I rather coveted to live these ten years, and, had I not done so, I should never have finished those tracts, which I have composed in consequence of my having been sound and hearty these ten years past; and which I have the pleasure to think will be of service to others. These sensualists add, that a regular life is such as no man can lead. To this I answer, Galen, who was so great a physician, led such a life, and chose it as the best physic. The same did Plato, Cicero, Isocrates, and many other great men of former times; whom, not to tire the reader, I shall forbear naming: and, in our own days, pope Paul Farnese led it, and cardinal Bembo; and it was for that reason they lived so long; likewise our two doges, Lando and Donato; besides many others of meaner condition, and those who live not only in cities, but also in different parts of the country, who all found great benefit by conforming to this regularity. Therefore, since many have led this life, and many actually lead it, it is not such a life but that every one may conform to it; and the more so, as no great difficulty attends it; nothing, indeed, being requisite but to begin in good earnest, as the above-mentioned Cicero affirms, and all those who now live in this manner. Plato, you will say, though he himself lived very regularly, affirms, notwithstanding, that, in republics, men cannot do so, being often obligated to expose themselves to heat, cold, and several other kinds of hardship, and other things, which are all so many disorders, and incompatable with a regular life. I answer, as I have already observed, that these are not disorders attended with any bad consequence, or which affect either health or life, when the man, who undergoes them, observes the rules of sobriety, and commits no excess in the two points concerning diet, which a republican may very well avoid, nay it is requisite he should avoid; because, by so doing, he may be sure either to escape those disorders, which, otherwise, it would be no easy matter for him to escape while exposed to these hardships; or, in case he could not escape them, he may more easily and speedily prevent their bad effects.