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

能源生产的效率是可持续发展的基石。

当然，语言是人类使用的最强大的药物。

Leadership is about making tough decisions today that will define tomorrow's opportunities.

作一年的打算，最好是种植五谷；作十年的打算，最好是种植树木；作终身的打算，最好是培育人才。