把这一句，留给此刻的你

I think that many of my ideas are correct, but I'll bet you, before my death other discoveries will be made that will prompt me to alter various ideas I have about human evolution.

我想我的许多想法都是正确的，但我敢打赌，在我死之前，会有其他的发现促使我改变我对人类进化的各种想法。

— Donald Johanson 美国古人类学家约翰松