“Every other knowledge is harmful to him who does not have knowledge of goodness.”

“Judgement can do without knowledge: but not knowledge without judgement.”

“We must not attach knowledge to the mind, we have to incorporate it there.”

“In truth, knowledge is a great and very useful quality; those who despise it give evidence enough of their stupidity. Yet I do not set its value at that extreme measure that some attribute to it, such as the philosopher Herillus, who find in it the sovereign good and think it has the power to make us wise and happy.”

“And this puts me in mind of that rich gentleman of Rome, who had been solicitous, with great expense, to procure men that were excellent in all sorts of science, whom he had always attending his person, to the end, that when amongst his friends any occasion fell out of speaking of any subject whatsoever, they might supply his place, and be ready to prompt him, one with a sentence of Seneca, another with a verse of Homer, and so forth, every one according to his talent; and he fancied this knowledge to be his own, because it was in the heads of those who lived upon his bounty; as they, also, do whose learning consists in having great libraries.”

“There is no desire more natural than the desire of knowledge. (Il n'est desir plus naturel que le desir de connaissance)”

“If anyone gets intoxicated with his knowledge when he looks beneath him, let him turn his eyes upward toward past ages, and he will lower his horns, finding there so many thousands of minds that trample him underfoot. If he gets into some flattering presumption about his valor, let him remember the lives of the two Scipios, so many armies, so many nations, all of whom leave him so far behind them. No particular quality will make a man proud who balances it against the many weaknesses and imperfections that are also in him, and, in the end, against the nullity of man’s estate.”