爱是一种痛苦。如果你感觉不到痛苦，那就不是爱。

粒子的纠缠不仅仅是一个理论上的奇观；它是宇宙的一个深刻特征，我们才刚刚开始理解。

If you’re not failing, you’re not pushing hard enough.

Productivity is being able to do things that you were never able to do before.

"We are all in the gutter, but some of us are looking at the stars."

The steel industry must adapt to the needs of the future.