They say there is no such thing as a free lunch.

他们说天下没有免费的午餐。

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There is no such thing as a free lunch.

世上没有免费午餐之类的好事儿。

《牛津词典》

New Zealand offers free school lunches to thousands of kids. WELLINGTON, Feb. 20 (Xinhua)—"Thousands of children have begun receiving a free lunch on schooldays under the government's free and healthy school lunch program," Prime Minister Jacinda Ardern said on Thursday.

新西兰为成千上万的孩子提供免费学校午餐。2月20日，新华社在惠灵顿报道——“在政府免费健康学校午餐计划的推动下，成千上万的孩子已经开始在上学日收到免费午餐。”总理杰辛达·阿登周四时说。

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figuring out there is no such thing as a free lunch but Markowitz tells us that diversification is a free lunch.

知道世上没有免费的午餐这回事,但马科维茨称分散投资是免费的午餐

耶鲁公开课 - 金融市场课程节选

As a matter of fact, Harry Markowitz called diversification a "Free lunch."

事实上,哈里·马科维茨,就把分散投资喻为"免费的午餐"

耶鲁公开课 - 金融市场课程节选

Therefore, that provides a free lunch in terms of increasing return while reducing risk.

FORBES: Magazine Article

And as the saying goes, there is no such thing as a free lunch.

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This IS a free lunch because we are operating at far less than full capacity.

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