"There is nothing more notable in Socrates than that he found time, when he was an old man, to learn music and dancing, and thought it time well spent."
"Nothing is so firmly believed as that which we least know."
"It is a disaster that wisdom forbids you to be satisfied with yourself and always sends you away dissatisfied and fearful, whereas stubbornness and foolhardiness fill their hosts with joy and assurance."
"Judgement can do without knowledge: but not knowledge without judgement."
"We must not attach knowledge to the mind, we have to incorporate it there."
"Man is certainly stark mad; he cannot make a worm, and yet he will be making gods by dozens."