महाभारत - तृष्णा

जीर्यन्ति जीर्यतः केशा दन्ता जीर्यन्ति जीर्यतः ।
चक्षुःश्रोत्रे च जीर्येते तृष्णैका तु न जीर्यते ॥

- महाभारत, अनु

The hair, the teeth, the eyes and the ears show signs of aging by getting weaker and weaker. It is only greed in a man that just does not get weaker (older).

- Mahabharatha, Anu