The greatest blessing of our democracy is freedom. But in the last analysis, our only freedom is the freedom to discipline ourselves.
"To be useful was the best thing the old men ever hoped for themselves, and to be aimless was their worst fear."
The price of inaction is far greater than the cost of making a mistake.
量子密码学不依赖于数学问题的难度,而是依赖于物理学的基本定律。
"The greatest glory in living lies not in never falling, but in rising every time we fall."