Hold not that the immature, the credulous, the foolish, the slow, the layman and the fallen to have nothing good in them. They all teach something. Learn from them. Surely we do not give up a game although we have mastered it? Think not lightly of thy Guru should he lack letters and learning. Take the Truth he teaches and ignore the rest. Know well that a boat, painted and adorned, will carry you across the river; so also will one that is plain and simple.
Sage Dattātreya (Avadhūta Gītā II.1-2)