——1963年6月25日在西德市政厅柏林墙前的演说

The most important thing is to turn your vision into reality.

I'm not afraid to fall because I know I'll get back up.

The best way to predict the future is to create it through bold, responsible action.

我们越擅长变得更好，我们就会变得越快更好。

The end of history will be a very sad time. The struggle for recognition, the willingness to risk one's life for a purely abstract goal, the worldwide ideological struggle that called forth daring, courage, imagination, and idealism, will be replaced by economic calculation, the endless solving of technical problems, environmental concerns, and the satisfaction of sophisticated consumer demands.

To be a good mathematician, you need to have both intuition and rigor.

The universe is not just a collection of stars and galaxies; it's a complex web of interactions and phenomena that we are only beginning to understand.