"So ambitious men, if they find the way open for their rising, and still get forward, they are rather busy than dangerous; but if they be checked in their desires, they become secretly discontent, and look upon men and matters with an evil eye, and are best pleased, when things go backward."
- Francis Bacon, 'Of Ambition', Essays

"The discontent and frustration that you feel is entirely your own creation."
- Stephen Richards, Think Your way to Success: Let Your Dreams Run Free