The energy crisis is a solvable problem—if we act now.

The facts are always friendly, every bit of evidence one can acquire, in any area, leads one that much closer to what is true.

每个人都是道德的铸造者。

善恶之间的界限常常模糊不清，我们需要自己去辨别。

预测未来的最好方法就是去创造它。

把人分为好坏很荒谬。人要么有魅力，要么就无趣。