最好的故事是那些挑战我们以不同方式看待世界的故事。
我是一个战士,不是一个忧虑者。
一个科学家的真正价值是由超越他的学生数量来衡量的。
Truth is like the sun; you can shut it out for a time, but it's not going away.
A people without children would face a hopeless future; a country without trees would face a future with even less hope.