The master told the disciple, “ You knew Po Yi, yes? “Po Yi was not without desire, for being too proud of his purity of mind, he was led to death by starvation. You also knew Chan-Chi and for being too proud of his virtue he froze to death in his cave. They were no different from the fools walking the streets full of craving.” “How is this so master?” asked the disciple. The master responded, “Those who are in pursuit of purity and virtue and do so in a false way resemble those who seek to satisfy their desires.
As to the co-existence of Taoism and Zen, look no further than the words of the great Zen scholar, Professor D.T. Suzuki, who said, "To ask a question about Zen is to ask a question about the Tao."