Too much knowledge leads to overactivity;
Better to calm the mind.
The more you consider, the greater the loss;
Better to unify the mind.
Water dripping ceaselessly
Will fill the four seas.
Specks of dust not wiped away
Will become the five mountains.

Shih Wang Ming (6th c CE-?), Shih Wang Ming also known as Wang Ming, but that maybe a pseudonym He was a monk and took his vows under a Chan master. His intellectual ability suggests that he also studied theory with numerous other teachers. Wang Ming emphasises the unification of mind as especially important and this goes back to the old Indian idea of bringing the mind to single-pointedness.