Collaboration across borders and industries is the key to solving the energy challenges of our time.

The scientific study of behavior must be based on objective, measurable data.

科学不仅仅是寻找答案，更是提出正确的问题。

The only way to do great work is to love what you do.

There is no easy walk to freedom anywhere, and many of us will have to pass through the valley of the shadow of death again and again before we reach the mountaintop of our desires.

I do not write to confess, but to explore the limits of the sayable.

Never ask a woman if she is pregnant. Let her tell you if she is.