一个测量可用的常识:手臂伸直两测指尖的距离就是你的身高。
Handy measure: the distance between your fingertips of your outstretched arms at shoulder level is your height.
你无法控制你无法衡量的东西。
Art is not what you see, but what you make others see.
理论物理学是一种形而上学。