物种和系统的多样性不是复杂,而是保险。
The reasonable man adapts himself to the world; the unreasonable one persists in trying to adapt the world to himself. Therefore all progress depends on the unreasonable man. )
没有坚强意志品质的人学识智慧也不会通达;不遵守诺言的人行动也不会实现。