If we were not all so interested in ourselves, life would be so uninteresting that none of us would be able to endure it.

As the biggest library if it is in disorder is not as useful as a small but well-arranged one, so you may accumulate a vast amount of knowledge but it will be of far less value than a much smaller amount if you have not thought it over for yourself.

There is one respect in which beasts show real wisdom... their quiet, placid enjoyment of the present moment.

To free a man from error is to give, not to take away. Knowledge that a thing is false is a truth. Error always does harm; sooner or later it will bring mischief to the man who harbors it.

The Universe is a dream dreamed by a single dreamer where all the dream characters dream too.

Night gives a black look to everything, whatever it may be.

A man can do what he wants, but not want what he wants.