he who ceases to learn is already a half-dead man. - Louis L'Amour

Never can tell when you might come on somebody needs skinning.

Up to a point a man’s life is shaped by environment, heredity, and movements and changes in the world about him; then there comes a time when it lies within his grasp to shape the clay of his life into the sort of thing he wishes to be. Only the weak blame parents, their race, their times, lack of good fortune, or the quirks of fate. Everyone has it within his power to say, this I am today, that I shall be tomorrow. The wish, however, must be implemented by deeds.

Lie to a liar, for lies are his coin; steal from a thief, for that is easy; lay a trap for the trickster and catch him at the first attempt, but beware of an honest man. (said by the author to be a Somali saying)