释义：兵法的要旨在于灵活应变，善于了解和掌握军事的本质，行动之前必须先预测敌人的动向。

自然法是自然教导所有动物的法则。

每天花点时间为自己做些事情。

我们越擅长变得更好，我们就会变得越快更好。

一本书是作家与读者跨越时间的对话。

I have the same goal I've had ever since I was a girl. I want to rule the world.

Sustainability must be at the core of everything we do in the chemical industry.

I want the reader to feel something is astonishing. Not the 'what happens,' but the way everything happens. These long short story fictions do this best, for me.

根据问题出现的背景，代数实部可以接受从负无穷到正无穷的所有数值。