There is no must in art because art is free.

我一直是个夜猫子，夜晚才是对的时刻。

Natural gas will play a crucial bridging role, but it cannot be the final destination.

生活中最重要的事情是做你自己。除非你能成为蝙蝠侠，那就永远做蝙蝠侠。