Abundance, even of good things, prevents them from being valued

Get the better of yourself - this is the best kind of victory.

A knight errant who turns mad for a reason deserves neither merit nor thanks. The thing is to do it without cause

They must take me for a fool, or even worse, a lunatic. And no wonder ,for I am so intensely conscious of my misfortune and my misery is so overwhelming that I am powerless to resist it and am being turned into stone, devoid of all knowledge or feeling.

All the vices, Sancho, bring some kind of pleasure with them; but envy brings nothing but irritation, bitterness, and rage.

Patience and shuffle the cards.

The most perceptive character in a play is the fool, because the man who wishes to seem simple cannot possibly be a simpleton.