解释：大旱之年收购船只，大水之年抛售船只并收购车辆，待到大旱之年再抛售车辆。

A painting requires a little mystery, some vagueness, and some fantasy.

"The colony is the place where the project of a new humanity is to be tested, where the dream of a world without borders is to be realized, where the dream of a world without races is to be realized."

释义：现在的贫富情况不能决定以后的穷富，将来的富裕或贫困情况还不能预知。