Whosoever does wrong, wrongs himself; whosoever does injustice, does it to himself, making himself evil.

Aptitude found in the understanding and is often inherited. Genius coming from reason and imagination, rarely.

Every man's life lies within the present; for the past is spent and done with, and the future is uncertain.

The stone that is thrown into the air is none the worse for falling down, and none the better for going up.

A man's happiness,-to do the things proper to man.

So much worse are the consequences of anger than its causes.

If someone can prove me wrong and show me my mistake in any thought or action, I shall gladly change. I seek the truth, which never harmed anyone: the harm is to persist in one's own self-deception and ignorance.