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。

The preservation of the means of knowledge among the lowest ranks is of more importance to the public than all the property of all the rich men in the country.

生物学的美在于它的复杂性和解决方案的优雅。

I'm not going to sit here and say I'm a role model, because I'm not trying to be.

农民是我们食品系统的支柱，我们必须用正确的工具支持他们。

I believe that if you'll just stand up and go, life will open up for you.

音乐是通用的语言。无论你来自哪里，它都能与每个人对话。