There are no hard distinctions between what is real and what is unreal, nor between what is true and what is false. A thing is not necessarily either true or false; it can be both true and false.

Every mental state exists for a purpose; to understand it, we must ask what function it serves in the broader system of behavior.

未来的竞争是生态系统的竞争，不是单个企业的竞争。

过去不过是一种幻觉，但它是一种必要的幻觉。