You use a glass mirror to see your face; you use works of art to see your soul.
Sustainability and efficiency must go hand in hand in modern energy production.
Stay true to yourself, because no one can replace you.
后见之明对历史学家乃至回忆录作者非常有用，但遗憾的是，实践中的政治家却无法拥有。
You can't build any kind of organization if you're not going to surround yourself with people who have experience and skill base beyond your own.
