Whoever will be cured of ignorance, let him confess it.

Learning must not only lodge with us: we must marry her.

The daughter-in-law of Pythagoras said that a woman who goes to bed with a man ought to lay aside her modesty with her skirt, and put it on again with her petticoat

Teach him a certain refinement in sorting out and selecting his arguments, with an affection for relevance and so for brevity. Above all let him be taught to throw down his arms and surrender to truth as soon as he perceives it, whether the truth is born at his rival's doing or within himself from some change in his ideas.

Whom conscience, ne'er asleep, Wounds with incessant strokes, not loud, but deep.

Speaking is half his that speaks, and half his that hears.

All we do is to look after the opinions and learning of others: we ought to make them our own.