人生如梦岁月如歌
[rén shēng rú mèng suì yuè rú gē]
'Rénshēng Rú Mèng Suìyuè Rú Gē' means that life is just like a dream, whereas time goes by like singing. It conveys that although human lives may be transient, the moments should be filled with joy, making a positive use of one's lifetime.