問餘何意棲碧山，笑而不答心自閒。 桃花流水窅然去，別有天地非人間。 Why do I roost here in these emerald mountains? I smile, but don’t say: my heart’s at ease. Peach blossoms drift off on the waves away — And there are other earths and skies than these. Li Bai 李白, “A Question in the Mountains, and an Answer” 山中問答