We cannot always build the future for our youth, but we can build our youth for the future.

Every song has its own life.

In science, as in life, the important things are rarely simple or obvious.

如果希特勒入侵了地狱,我也会在议会里夸奖魔鬼几句。

I’m a great believer in solving hard problems by using a checklist. You need to get all the likely and unlikely answers before you; otherwise it’s easy to miss something important.