我们的教学方法只有一个，就是必须维持孩子们的高度兴趣和强烈持续的注意力。

I used to walk down the street like I was a star... I want people to walk around delusional about how great they can be - and then to fight so hard for it every day that the lie becomes the truth.

在物理学中，近似的艺术往往比追求精确解更重要。