世界确实充满了危险，其中有许多黑暗的地方；但仍然有许多美好的事物，尽管在所有土地上，爱现在与悲伤交织在一起，但它或许因此变得更加伟大。
The world is indeed full of peril, and in it there are many dark places; but still there is much that is fair, and though in all lands love is now mingled with grief, it grows perhaps the greater.
"We carry our homes within us, which enables us to fly."
Success is a lousy teacher. It seduces smart people into thinking they can't lose.
我坚持自己的信仰，绝不退缩。
Science is a force for good, but only if we use it wisely.
The task of philosophy is to make the world more human.
教育的最高任务是培养个人对人类的责任感。
优化不是追求完美，而是在现有信息和资源下做出最佳决策。
生命的价值不在于我们呼吸的次数，而在于那些让我们屏息的时刻。