真相并不美丽，但它是必要的。
The past is not for living in; it is a well of conclusions from which we draw in order to act.
为社会正义而斗争必须成为任何教育实践的核心。
The most exciting phrase to hear in science, the one that heralds new discoveries, is not 'Eureka!' but 'That's funny...'
The biggest risk is not taking any risk. In a world that's changing quickly, the only strategy that is guaranteed to fail is not taking risks.