Zen Story: Too Much Tea

A university professor visited a famous Zen master. While the master quietly served tea, the professor talked about Zen.

The master poured the visitor’s cup to the brim, and then kept pouring. The professor watched the overflowing cup until he could no longer restrain himself.

“It’s overfull! No more will go in!”the professor blurted out.

“You are like this cup,”the master replied."How can I show you Zen unless you first empty your cup."

"In a beginner's mind, we have many possibilities, but in an expert mind, there is not much possibility." 

Shunryu Suzuki, author of Zen Mind, Beginner's Mind (pdf here).

Zen Mind, Beginner's Mind 

Shunryu Suzuki