A wise man said， “Before you speak， let your words pass through three gates. At the first gate， ask yourself， “Is it true？” At the second gate ask， “Is it necessary？” At the third gate ask， “Is it kind？”

生存就是在苦难中找到意义。

Setting goals is the first step in turning the invisible into the visible.

The only way to grow is to step out of your comfort zone.

让女性成为理性的生物和自由的公民，她们很快就会成为好妻子和好母亲。

The only way to understand another culture is to assume the frame of reference of that culture.

密码学的目标是使破解系统的成本超过受保护信息的价值。