“He who pretends to be either painter or engraver without being a master of drawing is an imposter”

“To cheat oneself out of love is the most terrible deception; it is an eternal loss for which there is no reparation, either in time or in eternity”

“One must not cheat anyone, not even the world of its victory.”

“Men still have to be governed by deception”

“The weak in courage is strong in cunning”

“Where so many hours have been spent in convincing myself that I am right, is there not some reason to fear I may be wrong?”