Change is the law of life. And those who look only to the past or present are certain to miss the future.

There is no limit to the powers of the human mind. The more concentrated it is, the more power is brought to bear on one point.

When in doubt, tell the truth.

How much easier it is to be critical than to be correct.

To die is poignantly bitter, but to die without having lived is unbearable.

The first problem for all of us, men and women, is not to learn, but to unlearn.

Freedom is never voluntarily given by the oppressor; it must be demanded by the oppressed.