The idea, which constitutes the actual being of the human mind, is not simple, but compounded of a great number of ideas.

There is no hope unmingled with fear, and no fear unmingled with hope.

A man is as much affected pleasurably or painfully by the image of a thing past or future as by the image of a thing present.

I do not believe anyone has reached such perfection, surpassing all others, except Christ, to whom God immediately revealed - without words or visions - the conditions which lead to salvation.

Fear cannot be without hope nor hope without fear.

Everything great is just as difficult to realize as it is rare to find.

Those who wish to seek out the cause of miracles and to understand the things of nature as philosophers, and not to stare at them in astonishment like fools, are soon considered heretical and impious, and proclaimed as such by those whom the mob adores as the interpreters of nature and the gods.