A method of solution is perfect if we can foresee from the start, and even prove, that following that method we shall attain our aim.
如果我们从一开始就能预见，甚至证明，遵循某种方法我们将达到我们的目标，那么这种解决方法就是完美的。
我无所畏惧——不是鲁莽的那种，而是忠于真实的自我。
对公共事务漠不关心的代价是被恶人统治。
The beauty of mathematics only shows itself to more patient followers.
A book should feel like an adventure, even if it’s just about a day at home.
