The best picture books work on different levels for different ages.
当我看着这个世界时,我是悲观的,但当我看着人们时,我是乐观的。
The line between good and evil is permeable and anyone can cross it when pushed by circumstances.
数学不是观赏性运动,你必须参与其中才能理解。
你穿过的门原来是什么样子,走过去以后也要保持那个样子。