I learned man once went to a Zen master to inquire about wisdom.

As the master talked, the learned man interrupted frequently with comments like, “Yes I have that too”, and so forth.

Finally the Zen master stop talking and began to serve tea to the learned man.

He kept pouring until the tea cup started to overflow.

“Enough! No more can go in the cup!” the learned man cried.

“Indeed” said the master.

Empty your cup.