Miguel de Cervantes

"There is also this benefit in brag, that the speaker is unconsciously expressing his own ideal. Humor him by all means, draw it all out, and hold him to it."

"In order to attain the impossible, one must attempt the absurd."

"To withdraw is not to run away, and to stay is no wise action, when there's more reason to fear than to hope."

"To be prepared is half the victory."