Stop being afraid of what could go wrong and start being excited about what could go right.
心理学必须是一门观察的科学,而非推测。
The moment you give up is the moment you let someone else win.
The next green revolution must be both productive and environmentally responsible.
I’ve always been an optimist and I suppose that is rooted in my belief that the power of creativity and intelligence can make the world a better place.