The greatest threat to democracy is not from external enemies but from internal decay and the loss of civic virtue.

我相信要想成功，就必须愿意做出牺牲。

理论不应该试图解释所有事实，因为有些事实是错误的。

Sometimes the simplest designs are the most robust.

The best way to predict the future of farming is to create it.

我本人是个乐观主义者,因为做别的貌似没什么用。