Cratylism is a philosophical theory based on the teachings of Cratylus, also known as Kratylos. Vaguely exegetical, it holds that the fluid nature of ideas, words, and communications leaves them fundamentally baseless, and possibly unable to support logic and reason.
Cratylism reaches similar conclusions about the nature of reality and communication that Taoism and Zen Buddhism also confronted. How can a mind in flux, in a flowing world, hold onto any solid 'truth' and convey it to another mind?
A fellow Greek philosopher, Nothing exists. Even if something did exist, nothing can be known about it; and Even if something can be known about it, knowledge about it cannot be communicated to others. And, finally, Even if it can be communicated, it cannot be understood. "
- What Was Cratylus Trying To Say?