Come in the soup, go in the water
Tang Li Lai and Shui Li Qu are still a Chinese word, which means that money comes and goes at will and can't be kept.
source
The 53rd chapter of Li Baojia's a brief history of civilization in Qing Dynasty: "Wang Mingyao is the most diligent and resourceful. He can get any money, but he comes from the soup and goes from the water. He has been busy for half a lifetime, and some of them can't be saved."
Examples
We don't need it now.
Come in the soup, go in the water
see the view and think of a friend ; at leisure - qīng fēng lǎng yuè
Accumulate, destroy and eliminate bones - jī huǐ xiāo gǔ
The arrow pierces the goose's beak - jiàn chuān yàn zuǐ
slavishly follow one's predecessors - dǎo xí qián rén