“Uncertainty is the refuge of hope.”

“It is not what he has, nor even what he does, which directly expresses the worth of a man, but what he is.”

“all appears to change when we change”

“Conquering any difficulty always gives one a secret joy, for it means pushing back a boundary line and adding to one's liberty.”

“Philosophy means the complete liberty of the mind.”

“I begin to realize that my memory is a great catacomb, and that below my actual standing-ground there is layer after layer of historical ashes. Is the life of mind something like that of great tree...”

“Education doesnt make you happy. Nor does freedom. We dont become happy just because were free if we are. Or because weve been educated if we have. But because education may be the means by which...”

“Because I trust in the ever-changing climate of the heart. (At least, today I feel that way.) I think it is necessary to have many experiences for the sake of feeling something; for the sake of bei...”

“The past has no power over the present moment.”

“Technology is just a tool. In terms of getting the kids working together and motivating them, the teacher is the most important.”

“I'm not a teacher: only a fellow traveler of whom you asked the way. I pointed ahead - ahead of myself as well as you.”

“I taught you everything you know. But I didn't teach you everything I know.”

“You cannot teach a man anything, you can only help him find it within himself.”

“It is easier to write a book with footnotes than the same book written so that children can understand it.”

“I never teach my pupils, I only attempt to provide the conditions in which they can learn.”