I write to understand as much as to be understood.

If you're competitor-focused， you have to wait until there is a competitor doing something. Being customer-focused allows you to be more pioneering.

热机的动力与实现它的工质无关；其量仅由最终实现热量转移的物体之间的温度决定。

你的20岁是你人生中最重要的十年。