A man is as his faith is – Bhagavad Gita

Friendly and compassionate to all and without any touch of hatred; devoid of possessiveness and arrogance; ever content and contemplative; alike in happiness and misery; self-controlled and firm in conviction; dedicated to Me with all his heart and all his soul—dear to Me is a man who is thus devoted.

Than (a mere formal) practice of disciplines, a clear intellectual understanding (of the doctrine) is better. Than such understanding, meditation is better. Even better than meditation is the abandonment of the fruits of action. For, such abandonment (of the fruits of works and sense of their agency) is immediately followed by peace. (Gita 12.12)

A man is as his faith is. (Gita 17.3)