Experience does not err. Only your judgments err by expecting from her what is not in her power.

Who sows virtue reaps honor.

One has no right to love or hate anything if one has not acquired a thorough knowledge of its nature. Great love springs from great knowledge of the beloved object, and if you know it but little you will be able to love it only a little or not at all.

This work should commence with the conception of man, and should describe the nature of the womb, and how the child inhabits it, and in what stage it dwells there, and the manner of its quickening and feeding, and its growth, and what interval there is between one stage of growth and another, and what thing drives it forth from the body of the mother, and for what reason it sometimes emerges from the belly of its mother before the due time.

Fame alone raises herself to Heaven, because virtuous things are in favour with God.

The color of the object illuminated partakes of the color of that which illuminates it.

Learning is the only thing the mind never exhausts, never fears, and never regrets.