The wise man lacked nothing but needed a great number of things, whereas the fool, on the other hand, needs nothing (for he does not know how to use anything) but lacks everything.

The wise man lives as long as he should, not just as long as he likes.

I persist on praising not the life I lead, but that which I ought to lead. I follow it at a mighty distance, crawling

Never to wrong others takes one a long way towards peace of mind.

The physician cannot prescribe by letter, he must feel the pulse.

Whatever begins, also ends.

Philosophy alone makes the mind invincible, and places us out of the reach of fortune, so that all her arrows fall short of us.