正如几何学最自然的起点是数学点,在观察和自然历史中采用同样的方法也最真实、简单且富有教益。
As in geometry the most natural way of beginning is from a mathematical point, so is the same method in observations and natural history the most genuine, simple, and instructive.
复杂性和矛盾不是要解决的问题,而是有待探索的机会。
The world changes when people decide to do things differently.
过去从未死去。它甚至不是过去。