Can a sparrow know how a stork feels?

Against great advantages in another, there are no means of defending ourselves except love.

Be above it! Make the world serve your purpose, but do not serve it.

The errors of the observer come from the qualities of the human mind.

I must consider more closely this cycle of good and bad days which I find coursing within myself. Passion, attachment, the urge to action, inventiveness, performance, order all alternate and keep their orbit; cheerfulness, vigor, energy, flexibility and fatigue, serenity as well as desire. Nothing disturbs the cycle for I lead a simple life, but I must still find the time and order in which I rotate.

First let a man teach himself, and then he will be taught by others.

He who only tastes his error will long dwell with it, will take delight in it as in a singular felicity; while he who drains it to the dregs will, if he be not crazy, find it to be what it is.