Whoever would do good in the world, ought not to deal in censure. We ought not to destroy, but rather construct.

A mathematician is only perfect insofar as he is a perfect man, sensitive to the beauty of truth.

Were not the eye made to receive the rays of the sun, it could not behold the sun; if the peculiar power of God lay not in us, how could the godlike charm us?

We do not have to visit a madhouse to find disordered minds; our planet is the mental institution of the universe.

Every person above the ordinary has a certain mission that they are called to fulfill.

I have always paid attention to the merits of my enemies, and found it an advantage.

Nothing is true, but that which is simple.