This it is to make choice of treasures that can secure themselves from plunder and violence, and to hide them in such a place into which no one can enter and that is not to be betrayed by any but ourselves.

Wives, children, and goods must be had, and especially health, by him that can get it; but we are not so to set our hearts upon them that our happiness must have its dependence upon them; we must reserve a backshop, wholly our own and entirely free, wherein to settle our true liberty, our principal solitude and retreat.
And in this we must for the most part entertain ourselves with ourselves, and so privately that no exotic knowledge or communication be admitted there; there to laugh and to talk, as if without wife, children, goods, train, or attendance, to the end that when it shall so fall out that we must lose any or all of these, it may be no new thing to be without them.
We have a mind pliable in itself, that will be company; that has wherewithal to attack and to defend, to receive and to give: let us not then fear in this solitude to languish under an uncomfortable vacuity.
"In solis sis tibi turba locis." ["In solitude, be company for thyself."-- Tibullus, vi.13.

12.] Virtue is satisfied with herself, without discipline, without words, without effects.

In our ordinary actions there is not one of a thousand that concerns ourselves.

He that thou seest scrambling up the ruins of that wall, furious and transported, against whom so many harquebuss-shots are levelled; and that other all over scars, pale, and fainting with hunger, and yet resolved rather to die than to open the gates to him; dost thou think that these men are there upon their own account?
No; peradventure in the behalf of one whom they never saw and who never concerns himself for their pains and danger, but lies wallowing the while in sloth and pleasure: this other slavering, blear-eyed, slovenly fellow, that thou seest come out of his study after midnight, dost thou think he has been tumbling over books to learn how to become a better man, wiser, and more content?
No such matter; he will there end his days, but he will teach posterity the measure of Plautus' verses and the true orthography of a Latin word.