股市中充满了知道一切价格但不知道任何价值的人。
The stock market is filled with individuals who know the price of everything, but the value of nothing.
The journey of solving a mathematical problem is as important as the solution itself, for it teaches us patience, persistence, and the joy of discovery.
Live as if you were to die tomorrow. Learn as if you were to live forever.
那时我老得多，现在我比那时年轻。