विषं दृष्ट्वामृतं दृष्ट्वा विषं त्यजति बुद्धिमान् ।आत्मानमपि दृष्ट्वा त्वं त्यजानात्मानमादरात् ॥ १३ ॥
In plain words
Set poison and nectar side by side, and anyone with sense looks at both and puts the poison down. You have seen the ātman now. So put down the anātman — and put it down in earnest.
Close to the Sanskrit
Having seen poison, having seen nectar, the intelligent man abandons the poison. Having seen the Self also, you — abandon the not-Self, earnestly.