In every word, there is a world waiting to be discovered.

The great use of life is to spend it for some thing that overlasts it.

The defining characteristic of pessimists is that they tend to believe bad events will last a long time, will undermine everything they do, and are their own fault.

释义：他认为气是宇宙的基础，因此气的无限性也代表着宇宙的无限性。