"He who would make his son a good man, must begin betimes with him, and set him to rights, whilst he is flexible, and his mind is easy to be wrought upon."

"I have always found that the best way to learn anything is to teach it to others."

"Bread, or water, or wine, which are the ordinary food and nourishment of the body, yet are not by nature bread, water, or wine, but become so by the application of the mind."

"There is no such thing as an innate idea."

"Custom is the great guide of human life."