His mind is so open - so open that ideas simply pass through it.
Adam knew Eve his wife and she conceived. It is a pity that this is still the only knowledge of their wives at which some men seem to arrive.
Metaphysics is the finding of bad reasons for what we believe on instinct.
Reason teaches us that what is good is good for something, and that what is good for nothing is not good at all.
The one self- knowledge worth having is to know one's own mind.
True penitence condemns to silence. What a man is ready to recall he would be willing to repeat.