The city is a living thing, always changing, always the same.
城市是一个活生生的东西，总是在变化，又总是一样。
数学不仅仅是关于数字、方程、计算或算法：它是关于理解的。
Keep dreaming, keep creating.
Play is the language of childhood, and books should speak that language too.
There are places in the world where the old gods still walk.