knowledge
“Men honor what lies within the sphere of their knowledge, but do not realize how dependent they are on what lies beyond it.”
“The world of nations is made by men, and so may be known by men.”
“Man can act only because he can ignore.”
“Felix qui potuit rerum cognoscere causas.”
“There is much pleasure to be gained from useless knowledge.”
“Discussion is an exchange of knowledge; an argument an exchange of ignorance.”
“There is no one who would not prefer to know rather than to be ignorant.”
“Our knowledge can only be finite, while our ignorance must necessarily be infinite.”
“Opinion is the medium between knowledge and ignorance.”
“I am the wisest man alive, for I know one thing, and that is that I know nothing.”
“What we know is a drop, what we do not know is an ocean.”
“If I have seen further it is by standing on the shoulders of giants.”
“Confusion is a word we have invented for an order which is not understood.”
“Ignorance is the parent of fear.”
“There are two kinds of truths: those of reasoning and those of fact.”
“The most merciful thing in the world is the inability of the human mind to correlate all its contents.”
“The only fence against the world is a thorough knowledge of it.”
“Reading furnishes the mind only with materials of knowledge; it is thinking that makes what we read ours.”
“All our knowledge begins with the senses, proceeds to the understanding, and ends with reason.”
“Thoughts without content are empty; intuitions without concepts are blind.”