The world owes all its onward impulses to men ill at ease. The happy man inevitably confines himself within ancient limits.

正向强化的实施方式比其数量更重要。

Writing is a way of bearing witness.

A business has to be involving, it has to be fun, and it has to exercise your creative instincts.

Psychological understanding comes from seeing function in action.

愿意承担损失的投资者将是长期成功的投资者。