Any change, even a change for the better, is always accompanied by drawbacks and discomforts.

最可持续的产品是已经存在的产品。

哲学的功能是在作为统治阶级武器的科学思想和作为无产阶级武器的科学思想之间划清界限。

我不喜欢被限制，我总是尝试做不同的事。

每一本书都是一段旅程，而每一段旅程都会让你有所改变。

A man knows when he is growing old because he begins to look like his father.