“No one can be a great thinker who does not recognize that as a thinker it is his first duty to follow his intellect to whatever conclusions it may lead.”

“The small are always dependent on the great; they are "small" precisely because they think they are independent. The great thinker is one who can hear what is greatest in the work of other "greats" and who can transform it in an original manner.”

“The first type of man is a follower. He does not have the courage or will to think for himself. The second type of man is a thinker. He dictates his own reality and does think for himself. The third type of man is a student and a teacher. He is one that learns from others and life. He thinks for himself and he also teaches others the lessons he’s learned from his experiences.”

“There have been, and may be again, great individual thinkers, in a general atmosphere of mental slavery.”

“[O]ther thinkers have philosophised since the time of Plato, but that does not destroy the interest and beauty of his philosophy”

“No poison can kill a positive thinker, and no medicine can save a negative thinker.”