I think as we are being envious, we should work even harder. We create our future, it doesn't come from luckiness, or speculate and manipulate for self-interest.

我想，我们在羡慕之余，我们要加倍的工作和学习，我们的人生是我们自己创造的，不是靠幸运，也不是靠投机取巧，需要的是脚踏实地拼搏。

youdao

Dr Wilson and Dr Daly speculate that the simple act of regarding beautiful women is able to engage and manipulate the male brain's reward centres.

ECONOMIST: Evolutionary biology