What ever you do, do it well. Do it so well that when people see you do it they will want to come back and see you do it again and they will want to bring others and show them how well you do what you do.

天（自然规律）不会改变，道（根本法则）也不会改变

理性预期假说并不意味着人们能够完美地预测未来。