'Wall Street' (1987)

On motivation

Gordon Gekko (played by Michael Douglas): "The point is, ladies and gentleman, that greed, for lack of a better word, is good. Greed is right, greed works. Greed clarifies, cuts through, and captures the essence of the evolutionary spirit. Greed, in all of its forms; greed for life, for money, for love, knowledge has marked the upward surge of mankind."

Pictured, Douglas as Gekko.