"The more a thing has perfection, the more it acts, and the less it suffers."

"Every man exists by the highest right of nature, and consequently, by the highest natural right, he does whatever follows from the necessity of his own nature."

"The more the mind understands, the more capable it is of understanding other things."

"The greatest good is the knowledge of the union which the mind has with the whole of nature."

"He who lives under the guidance of reason endeavours, as much as he can, to repay his fellow's hatred, anger, contempt, etc., with love and nobleness."