Ralph, like us, was willing to be a fool. and the way to get to the top of the heap in terms of developing original research is to be a fool, because only fools keep trying. You have idea number 1, you get excited, and it flops. Then you have idea number 2, you get excited, and it flops. Then you have idea number 9, you get excited, and it flops. Only a fool would be excited by the 100th idea, but it might take 100 ideas before one really pays off. Unless you're foolish enough to be continually excited, you won't have the motiva- tion, you won't have the energy to carry it through. God rewards fools Martin hellman Finding a one-way function ash mfy@ustc.edu.cn 现代密码学理论与实践 5/54mfy@ustc.edu.cn 现代密码学理论与实践 5/54  Finding a one-way function --Martin Hellman