The highest manifestation of life consists in this: that a being governs its own actions.A thing which is always subject to the direction of another is somewhat of a dead thing.

The best way to predict the future is to create it.

Sometimes the only way to stay sane is to go a little crazy sometimes.

The only thing greater than the power of the mind is the courage of the heart.

What I claim is to live to the full the contradiction of my time, which may well make sarcasm the condition of truth.

Every experiment is a question posed to nature, and every result is nature's answer.

沉默并不总是智慧的标志，但喋喋不休总是愚蠢的标志。