数学是过去与未来的对话。
Mathematics is a conversation between the past and the future.
死者并未死去。他们在记忆中活着。
我不介意成为一个象征，但我不想成为一个纪念碑。
Conflict is the gadfly of thought. It stirs us to observation and memory. It instigates to invention. It shocks us out of sheeplike passivity, and sets us at noting and contriving.
旅程本身就是一个人；没有两个是相同的。所有的计划、保障、监管和强制都是徒劳的。经过多年的挣扎，我们发现我们并没有去旅行；而是旅行带走了我们。
Some of life, you have to go to the great challenges.
出自唐代诗人韦应物《寄李儋元锡》，梁羽生在《大唐游侠传》中引用
