य: सर्वत्रानभिस्नेहस्तत्तत्प्राप्य शुभाशुभम् | नाभिनन्दति न द्वेष्टि तस्य प्रज्ञा प्रतिष्ठिता One who remains unattached under all conditions, and is neither delighted by good fortune nor dejected by tribulation, he is a sage with perfect knowledge. Bhagvad Gita Chapter 02 Verse 57