He who asks a question is a fool for five minutes; he who does not ask a questionremains a fool forever.

A half truth is a whole lie.

Thegreatest glory in living lies not in never falling,but in rising every time we fall.

A merefriend will agree with you, but a real friend will argue.

Thegalleries are full of critics. They play no ball, they fight no fights. Theymake no mistakes because they attempt nothing. Down in the arena are thedoers. They make mistakes because they try many things. The man who makes nomistakes lacks boldness and

Philosophy begins in wonder. And, at the end, when philosophic thought has done its best, the wonder remains.

Thereis no such thing as absolute value in this world. You can only estimate whata thing is worth to 'you.'

The Pursuit of perfection is the persuit of sweetness and light.

Ashes fly back into the face of him who throws them.

Sciencecannot resolve moral conflicts, but it can help to more accurately frame thedebates about those conflicts.

Few men of action have been able to make a graceful exit at the appropriate time.

To teach isto learn twice.