The only limit is the one you set yourself.

在探索现实的基本性质的追求中，我们必须准备好质疑我们认为我们所知道的一切。

The future of democracy depends on the ability of democratic societies to reform themselves.

Success is not final, failure is not fatal: it is the courage to continue that counts.

创造价值的最好方法是理解并满足他人的需求。

暴力不仅仅是身体上的；它嵌入在我们的系统和结构中。