你不可能总是得到你想要的,但有时你会得到你需要的。
地球形状的问题本质上是引力和旋转共同作用下的平衡问题。
任何事件的概率是依赖于该事件发生的期望值与事件发生时预期值之间的比率。
The steel industry must embrace digital transformation to stay relevant in the modern world.
The mathematician does not study pure mathematics because it is useful; he studies it because he delights in it and he delights in it because it is beautiful.