气候之变迁，非一朝一夕之故，其所由来者渐矣。
气候的变化不是一朝一夕的原因，它的由来是逐渐的。
唯一能战胜厄运的是努力工作。
The boundaries which divide Life from Death are at best shadowy and vague. Who shall say where the one ends, and where the other begins?
The rat in the maze is not just learning a series of turns, but is building up a cognitive map of the whole situation.