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The future belongs to those who can balance economic growth with environmental protection.

The most expensive thing in the world is trust. It can take years to earn and just a matter of seconds to lose.

I always try to be positive, even in tough moments.

Psychological truth is what helps us navigate reality.

I've been waiting more than 30 years to say this: "Dad, I always told you I'd come back and get my degree." I want to thank Harvard for this timely honor. I'll be changing my job next year…and it will be nice to finally have a college degree on my resume.