Bhagavad Gita 18.16

तत्रैवं सति कर्तारमात्मानं केवलं तु य: |
पश्यत्यकृतबुद्धित्वान्न स पश्यति दुर्मति:

Translation

Those who do not understand this regard the soul as the only doer. With their impure intellects they cannot see things as they are.