一个很好的经验法则：除非压痛(当你压肌肉或关节)都不见了，否则不做伸展或艰难的动作。

A good rule of thumb: no stretching or hard work until tenderness (pain when you push on the muscle or joint) is gone.

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这条法则，在现实生活和精力生涯中都是同样艰难艰苦的，它是巨大与卑贱的全部差别。

This rule, equally arduous in actual and in intellectual life, may serve for the whole distinction between greatness and meanness.

youdao

他们克服艰难，打破了一切终将分解然后消弥于无序的熵的法则。

They overcame the oppressive rule of entropy, which rules that all things and organizations will eventually disintegrate or evolve from order to disorder.

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