"Science rests on reason and experiment, and can meet an opponent with calmness; but a belief is always sensitive."

"The practical effect of a belief is the real test of its soundness."

"Human improvement is from within outward."

"You cannot dream yourself into a character; you must hammer and forge yourself one."

"The essence of greatness is neglect of the self."

"To deny the freedom of the will is to make morality impossible."

"Our human laws are more or less imperfect copies of the external laws as we see them."

"The better one is morally the less aware they are of their virtue."

"Instruction does not prevent waster of time or mistakes; and mistakes themselves are often the best teachers of all."