"I make not my head a grave, but a treasury of knowledge; I intend no monopoly, but a community in learning; I study not for my own sake only, but for theirs that study not for themselves; I envy no man that knows more than myself, but pity them that know less. I instruct no man as an exercise of my knowledge, or with an intent other than to nourish and keep it alive in my own head, and beget and propagate it in his; and, in the midst of all my endeavors, there is but one thought that dejects me --- that my acquired talents must perish with myself, nor can be legacied among my honored friends." 
Brown.