我们应清醒认识到，世界上没有免费的午餐。
Instead we should be aware the fact that there is no free lunch in the world.
一个越早明白越好的道理是，世界上没有免费的午餐。
One thing the earlier you learn the better it is, there is no such thing as a free lunch in the world.
如同文章所述，世界上没有免费的午餐，我们也不能祈求上天。
Like the article said, there is no free lunch in this world and we can't pray to god.
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