No man's knowledge here can go beyond his experience.

Sustainability is not just a trend; it's a responsibility we owe to future generations.

Courage is the most important of all the virtues, because without courage you can't practice any other virtue consistently.

无论情况如何，我总是尽力付出100%。

The Internet is a living, evolving entity that requires constant attention and care.

Grow old along with me! The best is yet to be, the last of life, for which the first was made.

教育是一盏灯，但许多人从未找到开关。

对来自学生的批评应该本着友好的精神来接受，学习材料的积累不应该扼杀学生的独立性。