Bhagavad Gita 7.3

मनुष्यानां सहस्रेषु कश्चिद्यति सिद्धये |
यत्तमपि सिद्धानां कश्चिन्मं वेत्ति तत्त्वत:

Translation

Amongst thousands of persons, hardly one strives for perfection; and amongst those who have achieved perfection, hardly one knows Me in truth.