The path to success is to take massive, determined action.

A man is literally what he thinks.

Knowing is not enough, we must apply. Willing is not enough, we must do.

A scholar who cherishes the love of comfort is not fit to be deemed a scholar.

And this sensitivity will create new friendships for you - friendships with trees, with birds, with animals, with mountains, with rivers, with oceans, with stars. Life becomes richer as love grows.

It is not the strength, but the duration, of great sentiments that makes great men.

Wisdom is not the product of schooling, but of the lifelong attempt to acquire it.

Man is the only creature who refuses to be what he is.

Moderation in temper is always a virtue; but moderation in principle is always a vice.

No man has any natural authority over his fellow men.

For we walk by faith, not by sight

Time wounds all heels.

I think, therefore I am.

Be curious, not judgmental.

The heart has its reasons which reason knows not.

There are no eternal facts, as there are no absolute truths.

Tomorrow hopes we have learned something from yesterday.

It is better to be looked over than overlooked.

But the fact that some geniuses were laughed at does not imply that all who are laughed at are geniuses. They laughed at Columbus, they laughed at Fulton, they laughed at the Wright brothers. But they also laughed at Bozo the Clown.

Love one another, but make not a bond of love: Let it rather be a moving sea between the shores of your souls.

Just remember, once you're over the hill you begin to pick up speed.