A pessimist sees only the dark side of the clouds, and mopes; a philosopher sees both sides, and shrugs; an optimist doesn't care. Momentum is wht it wants to gather.
Bythree methods we may learn wisdom: first, by reflection, which is noblest;second, imitation, which is easiest; and third by experience, which is thebitterest.
Changemeans movement. Movement means friction. Only in the frictionless vacuum of anonexistent abstract world can movement or change occur without that abrasivefriction of conflict.