Bhagavad Gita 8.26

These bright and dark paths out of the world have always existed. Whoever takes the former, does not return; he who chooses the latter, returns.

शुक्लकृष्णे गती ह्येते जगतः शाश्वते मते।
एकया यात्यनावृत्तिमन्ययाऽऽवर्तते पुनः॥

śuklakṛṣṇe gatī hyete jagataḥ śāśvate mate|
ekayā yātyanāvṛttimanyayā''vartate punaḥ||

English translation (above): Shri Purohit Swami (1935), public domain. Sanskrit text via github.com/gita/gita (Unlicense).