The natural and moral world is the two-fold object of man's rational care.

能源的未来在于可持续性和创新。

当我们既倾听科学家又倾听农民时，真正的进步才会发生。

智者和愚人都没有害，最危险的倒是智愚参半。

I want to stand as close to the edge as I can without going over. Out on the edge you see all kinds of things you can't see from the center.

电影的美在于它是一种合作的艺术形式。

儿童的一切教育都必须遵循一个原则，即帮助孩子身心自然的发展。