易涨易退山溪水，易反易覆小人心。
山溪里的水随着季节常涨常退，不明事理的小人反复无常。
医学的未来将由我们对基因的理解所塑造。
True scientific progress is achieved not by mere accumulation of facts, but by the continuous refinement of theories and models.
Everything is what it is， and not another thing.
The task of the writer is to make the familiar strange and the strange familiar.