Education is the kindling of a flame, not the filling of a vessel.
Agora
It would be better for me that the whole world should disagree with me than that I, being one, should be out of harmony with myself.
He is richest who is content with the least, for contentment is the wealth of nature.
Wonder is the beginning of wisdom.
The mind is not a vessel that needs filling, but wood that needs igniting.
Learning never exhausts the mind.
Study without desire spoils the memory, and it retains nothing that it takes in.