To be alive is to be in a state of constant becoming.
Happiness is not something ready made. It comes from your own actions.
密码学的力量不仅在于保守秘密,还在于在数字世界中建立信任。
Every man over forty is responsible for his face.
民主必须在每一代人中焕发新生,而教育是它的助产士。