不要着急，最好的总会在最不经意的时候出现。

The most important thing a woman can do for her children is to love their father.

"The challenge in theoretical computer science is not just to solve problems, but to understand why they are hard to solve."

必须容许孩子选择物品，这可以让原来的发展得以持续，清除孩子尚无意识的心智之间的障碍。