对的就说是对的，错的就说是错的，就是所谓的正直。

"The only real elegance is in the mind; if you've got that, the rest really comes from it."

最优雅的证明是那些清晰地揭示问题本质的证明。

Climate change is the ultimate test of our agricultural ingenuity.

可持续捕捞不是一种选择；如果我们想保护海洋生态系统，这是唯一的前进道路。