Verse
यदृच्छालाभसंतुष्टो द्वन्द्वातीतो विमत्सरः ।समः सिद्धावसिद्धौ च कृत्वापि न निबध्यते ॥
He who is satisfied with whatever gain comes to him, who has passed beyond the dualities, is jealous of none, is equal in failure and success, he is not bound even when he acts.
Gītā 4·22