Conflict
"Behold a worthy sight, to which the God, turning his attention to his own work, may direct his gaze. Behold an equal thing, worthy of a God, a brave man matched in conflict with evil fortune." - Seneca
"A round man cannot be expected to fit in a square hole right away. He must have time to modify his shape." - Mark Twain
"I've got better things to do than argue with every wrong-headed crackpot with an ignorant opinion! I'm a busy man! 'I' say, either agree with me or take a hike! I'm right, period! End of discussion!" - Calvin in Bill Watterson's 'Calvin & Hobbes' comic strip