The world is so unpredictable. Things happen suddenly, unexpectedly. We want to feel we are in control of our own existence. In some ways we are, in some ways we're not. We are ruled by the forces of chance and coincidence.

最大的满足是知道你已全力以赴。

Mathematics is the art of giving the same name to different things.

阳台或者门廊应该至少有两米深，不然就用不上。