“Opposition is true friendship”

“A fair request should be followed by the deed in silence”

“There are only two people who can tell you the truth about yourself - an enemy who has lost his temper and a friend who loves you dearly”

“A true teacher defends his students against his own personal influences”

“He who doubts from what he sees will never believe, do what you please”

“When I tell the truth, it is not for the sake of convincing those who do not know it, but for the sake of defending those that do. ”