The personal example of a teacher is the most useful sunshine that nothing can replace for the soul of young people.

The essence of the internet is connection, connecting people with information, services, and each other.

真相很少是纯粹的，也从不简单。

要发出紧急信号，使用“重要的事情说三遍”的“三”法则；三次呼喊、三声喇叭或三声哨声。