"We do not know one millionth of one percent about anything.
"What can I know? What ought I to do? What may I hope?"
"What do I know?"
"All men naturally desire knowledge."
"Knowledge and human power are synonymous."
"It ain't what a man don't know that makes him a fool, but what he
does know that ain't so."
"Since we cannot know all that is to be known of everything, we
ought to know a little about everything."
"Knowledge is of two kinds. We know a subject ourselves, or we know
where we have information upon it.
"We can be knowledgeable with other men's knowledge, but we cannot
be wise with other men's wisdom."
"A specialist is one who knows everything about something and
nothing about everything else."
"Knowledge without conscience is the ruination of the soul."
"Beware of false knowledge; it is more dangerous than ignorance."
"Savoir pour prévoir; prévoir pour pouvoir"
"For knowledge itself is power."
"I have taken all knowledge to be my province."
"He that hath knowledge spareth his words."