Where there is shouting, there is no true knowledge.

Knowledge of the past and of the places of the earth is the ornament and food of the mind of man.

Nature is the source of all true knowledge. She has her own logic, her own laws, she has no effect without cause nor invention without necessity.

Art is the queen of all sciences communicating knowledge to all the generations of the world.

For, verily, great love springs from great knowledge of the beloved object, and if you little know it, you will be able to love it only little or not at all.

All sciences are vain and full of errors that are not born of Experience, the mother of all Knowledge.