Sustainability isn't a cost—it's an investment in our future.

I never know what I think about something until I read what I've written on it.

Old age is not interesting until one gets there.

哲学问题的形式是：‘我不知道我该怎么做。’

The biggest room in the world is the room for improvement.

一个人如果不讲信用，不知道他怎么能立身处世？就像牛车没有了輗，马车上没有了軏，还靠什么行走呢？

这世界上聪明的人，努力的人太多了，要得到你想要的东西，最可靠的办法，是让自己配得上它。