Creation is man's immortality and brings him nearest to the gods.

Do you suppose that I should have lived as long as I have if I had moved in the sphere of public life, and conducting myself in that sphere like an honorable man, had always upheld the cause of right, and conscientiously set this end above all other things? Not by a very long way, gentlemen; neither would any other man.

The more I learn, the less I realize I know.

Aren't you ashamed to be concerned so much about making all the money you can and advancing your reputation and prestige, while for truth and wisdom and the improvement of your souls you have no thought or car?

When you want success as badly as you want the air, then you will get it. There is no other secret of success.

There is no possession more valuable than a good and faithful friend.

Follow the argument wherever it leads.