Verse
यः शास्त्रविधिमुत्सृज्य वर्तते कामकारतः ।न स सिद्धिमवाप्नोति न सुखं न परां गतिम् ॥
He who, having cast aside the rules of the Shastra, followeth the promptings of desire, attaineth not to perfection, nor happiness, nor the highest soul-status.
Gītā 16·23