Cogito cogito ergo cogito sum -- "I think that I think, therefore I think that I am;" as close an approach to certainty as any philosopher has yet made.
Ambrose BierceDance, v.i. To leap about to the sound of tittering music, preferably with arms about your neighbor's wife or daughter. There are many kinds of dances, but all those requiring the participation of the two sexes have two characteristics in common: they are conspicuously innocent, and warmly loved by the vicious.
Ambrose BierceBigot: One who is obstinately and zealously attached to an opinion that you do not entertain.
Ambrose Bierce