A man must shape himself to a new mark directly the old one goes to ground.

When things are easy, I hate it.

I have often marveled at the thin line which separates success from failure.

We had seen God in His splendors, heard the text that Nature renders. We had reached the naked soul of man.

I chose life over death for myself and my friends... I believe it is in our nature to explore, to reach out into the unknown. The only true failure would be not to explore at all.

Loneliness is the penalty of leadership, but the man who has to make the decisions is assisted greatly if he feels that there is no uncertainty in the minds of those who follow him, and that his orders will be carried out confidently and in the expectation of success.

Teachers should be very careful not to spoil their pupils' taste for poetry for all time by making it a task and an imposition.