The lessons taught even by skillful men is not perfect; for the moral sought to be conveyed by them is not understood and if understood, is not carried into practice.
असम्यगुपयुक्तं हि ज्ञानं सुकुशलैरपि। उपलभ्यं चाविदितं विदितं चाननुष्ठितम्॥