The Brahmana shines by self-control; the Kshatriya by victory; the Vaishya by riches; while the Shudra always shines in glory through clever serving.
दमेन शोभते विप्रः क्षत्रियो विजयेन तु। धनेन वैश्यः शूद्रस्तु नित्यं दाक्ष्येण शोभते॥