Nature is man's teacher. She unfolds her treasures to his search, unseals his eye, illumes his mind, and purifies his heart; an influence breathes from all the sights and sounds of her existence.

Kant's style is so heavy that after his pure reason, the reader longs for unreasonableness.

If I have a thousand ideas and only one turns out to be good, I am satisfied.

Good wishes alone will not ensure peace.

It is my express wish that in awarding the [Nobel Prizes] no consideration be given to the nationality of the candidates, but that the most worthy shall receive the prize, whether he be Scandinavian or not.

I intend to leave after my death a large fund for the promotion of the peace idea, but I am skeptical as to its results.

I am a misanthrope yet utterly benevolent.