Contentment is the only real wealth.
Lying is the greatest of all sins.
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.
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.
If I have a thousand ideas and only one turns out to be good, I am satisfied.
A recluse without books and ink is already in life a dead man.
Good wishes alone will not ensure peace.
Home is where I work, and I work everywhere.
My dynamite will sooner lead to peace than a thousand world conventions. As soon as men will find that in one instant, whole armies can be utterly destroyed, they surely will abide by golden peace.