Anger blows out the lamp of the mind.

Colleges are places where pebbles are polished and diamonds are dimmed.

Courage without conscience is a wild beast.

Custom meets us at the cradle and leaves us only at the tomb.

Happiness is not a reward -- it is a consequence. Suffering is not a punishment -- it is a result.

Hope is the only universal liar who never loses his reputation for veracity.

In Nature there are neither rewards nor punishments, there are consequences.

Insolence is not logic; epithets are the arguments of malice.

Joy is wealth and love is the legal tender of the soul.

Nothing in this world is more important than personal liberty. Many people are in favor of blotting out the sun to prevent the growth of weeds. This is the mistake of all prohibitory fanaticism.

Surely there is grandeur in knowing that in the realm of thought, at least, you are without a chain; that you have the right to explore all heights and depth; that there are no walls nor fences, nor prohibited places, nor sacred corners in all the vast expanse of thought...