我们基本的教育观念是：我们绝不能变成孩子发展的障碍。

A good system can't have a weak command language.

数学中最重要的技能是清晰思考的能力。

Believe you can and you're halfway there.

语境就是作品。

Make decisions when you are ready, not under pressure. Others will always push you to make a decision for their own purposes, internal politics, or some other external need. But you can almost always say, “I need a little more time to think about this. I’ll get back to you.” This tactic is very effective at defusing even the most difficult and uncomfortable situations.