未经审视的生活不值得过。

There is an awful lot you can tell about a person by their shoes. Where they're going. Where they've been.

I’m positive that in 100 years much of what I take to be true today will be proved to be wrong， maybe even embarrassingly wrong， and I try really hard to identify what it is that I am wrong about today.

"The future is about creating a culture of continuous learning."