A professor, who was looking for wisdom, went to see a wise man named Nan-in.
During their meeting, Nan-in was pouring tea and continued to pour and pour
even though the professor’s cup was overflowing.
The professor cried. “Enough! No more will go in!”
Nan-in replied “Like this cup you are full of your own opinions and ideas.
How can you find wisdom unless you first empty your cup?”
a Zen story