I'm very confident in my own skin.

卡塞尔文献展是举向艺术世界的一面镜子。

If you're changing the world, you're working on important things. You're excited to get up in the morning.

追求数学知识是一段永无止境的旅程。

某些城市人工制品的永久性赋予了它们纪念碑的品质。