A flippant, frivolous man may ridicule others, may controvert them, scorn them; but he who has any respect for himself seems to have renounced the right of thinking meanly of others.

One's roused by this, another finds that fit: Each loves the play for what he brings to it.

Hatred is active, and envy passive dislike; there is but one step from envy to hate.

I am certain that I have been here as I am now a thousand times before, and I hope to return a thousand times.

If in the infinite you want to stride, Just walk in the finite to every side.

Superstition is rooted in a much deeper and more sensitive layer of the psyche than skepticism.

Nothing shows a man's character more than what he laughs at.