Concerning the gods, I have no means of knowing whether they exist or not or of what sort they may be. Many things prevent knowledge including the obscurity of the subject and the brevity of human life.

"Die Kunst ist die Tochter der Freiheit."

晏子春秋

量子密码学不是关于保守秘密，而是知道何时有人试图窃取它们。

真正的作家是因为有话要说而写作，而不是因为想说些什么而写作。