यं हि न व्यथयन्त्येते पुरुषं पुरुषर्षभ । समदुःखसुखं धीरं सोऽमृतत्वाय कल्पते ॥
Transliteration
yam hi na vyathayanty ete purusam purusarsabha sama-duhkha-sukham dhiram so 'mrtatvaya kalpate
Translation
O Noblest of men! The person who remains alike in happiness and distress and remains steady in both is certainly eligible for liberation
Purport
After explaining short about the secret of continuity of life and happiness and sorrow. Bhagvan Shri Krishna explains Arjuna about the secret of Truth and UnTruth. Bhagvan Shri Krishna said, the truth is something which always exists. Untruth on other hand never exist though appear to exist temporarily.