领导力意味着做出今天艰难的决定，这将使后代受益。

Always ask: How can we do better? Then act on the answer.

历史学家必须是诗人，不是为了创造，而是为了重新创造。

"The only way to deal with an unfree world is to become so absolutely free that your very existence is an act of rebellion."

可持续性不是一种选择；它是能源未来的必要条件。

我不走捷径。