Keep your face always toward the sunshine, and shadows will fall behind you.
未来是自己开拓的。
有人居住的世界的边界是由人类知识的极限决定的。
The joy of mathematics is in the journey, not just the destination.
要理解一个人，你必须穿着他们的鞋子走一英里 - 然后在他们的思想中再走一英里。
Stay calm, accept the current self, do well, and often you can do things well: ordinary people can also do extraordinary things.