No one should be ashamed at changing his mind—that’s what the mind is for. “A foolish consistency is the hobgoblin of little minds,” Emerson said, “adored by little statesmen and philosophers and divines.” That’s why we go to such lengths to learn and expose ourselves to wisdom.

As Diogenes, the famous Cynic, once said, “It is the privilege of the gods to want nothing, and of godlike men to want little.” To want nothing makes one invincible—because nothing lies outside your control.