The more you know, the more you realize you don't know.
A book is a mirror: if an ape looks into it, an apostle is unlikely to look out.
The future of energy is not either/or—it's all of the above.
我认为保持脚踏实地并记住你来自哪里是很重要的。
The great thing about being old is that you don’t have to worry about the future.
当你攻击煤炭时，你就是在攻击美国中部地区。
你接近生命的终点——不，不是生命本身，而是其他东西：生命中任何改变的可能性的终结。