The oldest, shortest words- 'yes' and 'no'- are those which require the most thought.

Almost every wise saying has an opposite one, no less wise, to balance it.

For we walk by faith, not by sight

Learned we may be with another man's learning: we can only be wise with wisdom of our own.

Words mean more than what is set down on paper. It takes the human voice to infuse them with deeper meaning.

What's real and what's true aren't necessarily the same.

Most of us have far more courage than we ever dreamed possible

One who loses wealth loses much. One who loses a friend loses more. But one who loses courage loses all.

In a good bookroom you feel in some mysterious way that you are absorbing the wisdom contained in all the books through your skin, without even opening them.

He alone is free who lives with free consent under the entire guidance of reason.

The secret of life, though, is to fall seven times and to get up eight times.

Whatever the mind of man creates, should be controlled by man's character

One of the truest tests of integrity is its blunt refusal to be compromised.

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.

A proverb is much matter distilled into few words.

Chaos is a name for any order that produces confusion in our minds.

Stubborn and ardent clinging to one's opinion is the best proof of stupidity.

A person who spends more than he earns is a fool

There is an art, or rather a knack to flying. The knack lies in learning how to throw yourself at the ground and miss.

No man has any natural authority over his fellow men.

Intelligence is the ability to adapt to change.