Life is either a daring adventure or nothing at all.
生活是一场冒险，或者它根本不值得一活。
The only way to learn mathematics is to do mathematics.
我思故我在已被废弃；我们应说，我感受故我在。
Don’t fear failure—fear being in the same place next year as you are today.
投资的最佳时机是当别人恐惧的时候。