The definition of a true gentleman

He does not say that it consists in a series of generations from father to son, of which he himself is the latest heir; he makes light of genealogies. He defines the gentleman by saying that he is a man who demands respect and who believes that there is no way to be respected but to respect others, to live decently, to deceive no one, never to lie when the person who is listening to him believes that he is speaking sincerely, and to put his honor above his life. 

Giacomo Casanova - History of my life (11, 3)