In all things of nature there is something of the marvelous.

. . . Political society exists for the sake of noble actions, and not of mere companionship.

Time past, even God is deprived of the power of recalling.

Man's best friend is one who wishes well to the object of his wish for his sake, even if no one is to know of it.

Youth should be kept strangers to all that is bad, and especially to things which suggest vice or hate. When the five years have passed away, during the two following years they must look on at the pursuits which they are hereafter to learn. There are two periods of life with reference to which education has to be divided, from seven to the age of puberty, and onwards to the age of one and twenty.

He who is unable to live in society, or who has no need because he is sufficient for himself, must be either a beast or a god.

There is nothing strange in the circle being the origin of any and every marvel.