解释：明智的人不违背时机而放弃有利的行动，勇士不回避死亡而埋没名声，忠臣不先顾及自己后顾及国君。

The world might be mean, but people don't have to be.

欧佩克不再掌控全球石油市场的所有牌。

这个世界是个美好的地方，值得为之奋斗。

除非我了解业务，否则我从不购买股票。

I prefer to supervise the whole operations of the government myself rather than entrust the public business to subordinates.

Let us try to teach generosity and altruism, because we are born selfish.

The future of medicine lies in understanding the smallest details.

The energy transition presents both challenges and opportunities - those who adapt will thrive.