Our heroes are human heroes. That's a very new situation. Most other societies have had, right at their center, the worship of something transcendent: a god, a spirit, a natural force, the universe, whatever it is -- something else that is being worshiped. We've slightly lost the habit of doing that, which is, I think, why we're particularly drawn to nature.
Safety isn't a priority—priorities can change. Safety is a core value that never changes.
世界是事实的总体，而不是事物的总体。
永远不要低估小而持续的改进的力量，随着时间的推移，它们会带来巨大的成果。