Leadership is about making others better as a result of your presence and making sure that impact lasts in your absence.

Writing is a form of freedom.

自由的代价是永恒的警惕。

林业的效率并不意味着砍伐更多，而是让每一棵树都有价值。

Man's main task in life is to give birth to himself, to become what he potentially is. The most important product of his effort is his own personality.

介导疼痛的分子非常古老，揭示了这种感觉在进化中的深远根源。