The arithmetic of L-functions is a window into the soul of number theory.

The challenge is to transform the constraints into opportunities.

只要你能坚持一步一步往前走，你几乎可以度过任何难关。

Change is not made without inconvenience, even from worse to better.

英国人不太注重精神生活，所以他们发明了板球来让他们对永恒有点概念。

The goal of cryptography is to make it so that the cost of breaking the system exceeds the value of the information protected.

Your heart knows the way, follow it.

Come,my friends,Tis not too late to seek a newer world,For my purpose holds to sail beyond the sunset，And though we are not now that strength which in old days moved earth and heaven,That which we are, we are;-- One equal temper of heroic hearts, Made weak by time and fate, but strong in will. To strive, to seek, to find, and not to yield。