Truth is a free creation of the human spirit, that never would exist at all if we did not generate it ourselves.

Evidence-based policymaking leads to better outcomes.

True understanding comes from empathy.

El silencio es a veces la mejor respuesta.

在数学中，旅程往往比目的地更重要。

你必须花费一些精力和努力才能看到数学的美。

And when you do I want you to know this， remember this: there is no such thing as failure. Failure is just life trying to move us in another direction. Now when you’re down there in the hole， it looks like failure. So this past year I had to spoon feed those words to myself.

太阳，带着所有围绕它运行并依赖它的行星，仍然能像在宇宙中没有其他事情可做一样，使一串葡萄成熟。