Job 11:
7 Canst thou by searching find out God? canst thou find out the Almighty unto perfection?
8 It is as high as heaven; what canst thou do? deeper than hell; what canst thou know?
9 The measure thereof is longer than the earth, and broader than the sea.
10 If he cut off, and shut up, or gather together, then who can hinder him?
11 For he knoweth vain men: he seeth wickedness also; will he not then consider it?
12 For vain man would be wise, though man be born like a wild ass's colt.
13 If thou prepare thine heart, and stretch out thine hands toward him;
14 If iniquity be in thine hand, put it far away, and let not wickedness dwell in thy tabernacles.

The Doctrine of CHRIST creates THE PATH, our only path unto Perfection.  Perfection is HIS, not "their perfection" or our perfection.  

We can neither sell perfection, nor give it away.  It belongs to HIM.  Maybe we should prepare our hearts and stretch out our hands towards HIM instead, then teach others?