“And the quality of good judgement is clearly a form of knowledge and skill, as it is because of knowledge and not because of ignorance that we judge well.”

“The philosopher is in love with truth, that is, not with the changing world of sensation, which is the object of opinion, but with the unchanging reality which is the object of knowledge.”

“Wealth and poverty; one is the parent of luxury and indolence, and the other of meanness and viciousness, and both of discontent.”

“Hereditary honors are a noble and a splendid treasure to descendants.”

“Experience proves that anyone who has studied geometry is infinitely quicker to grasp difficult subjects than one who has not.”

“To do a great right do a little wrong.”

“For I can raise no money by vile means. By heaven, I had rather coin my heart, And drop my blood for drachmas”

“Profit is a blessing, if it's not stolen.”