Young courage and old caution are a strong pair.

年轻的勇气和年老的谨慎是一对坚强的伴侣。

相关名言

The real world is far too complex and unpredictable to make something like the idea of humanity controlling its own evolution or engineering itself - well, I wouldn't say impossible but it should be approached with a degree of caution.

现实世界太过复杂和不可预测,以至于人类无法控制自己的进化或改造自己——我不会说不可能,但我们应该谨慎对待这个问题。

That is the lion's tail, do not play with it.

那是狮子的尾巴,不要玩弄它。