As soon as laws are necessary for men, they are no longer fit for freedom.

As long as man continues to be the ruthless destroyer of lower living beings he will never know health or peace. For as long as men massacre animals, they will kill each other.

Strength of mind rests in sobriety; for this keeps your reason unclouded by passion.

There is geometry in the humming of the strings, there is music in the spacing of the spheres.

Anger begins with folly, and ends with repentance.