Verse
मात्रास्पर्शास्तु कौन्तेय शीतोष्णसुखदुःखदाः ।आगमापायिनोऽनित्यास् तांस्तितिक्षस्व भारत ॥
The material touches, O son of Kunti, giving cold and heat, pleasure and pain, things transient which come and go, these learn to endure, O Bharata.
Gītā 2·14