我必须研究政治和战争，以便我的儿子们可以自由地研究数学和哲学。

开放与合作是技术发展的加速器。

I think it's rarely about what you actually learn in class. It's mostly about the way that you look at things.

过去是一个异国；他们在那里做事的方式不同。

To love is to risk not being loved in return. To hope is to risk pain. To try is to risk failure, but risk must be taken because the greatest hazard in life is to risk nothing.

课程必须被视为达到目的的手段，而不是目的本身。