מעט מן האור דוחה הרבה מן החושך

“A little light dispels much darkness.”

Even a small act of goodness can overcome a great deal of hardship.

— Traditional Israel Wisdom, Israel

Source: Rabbi Shneur Zalman of Liadi, Tanya (Likutei Amarim), ch. 12 (1797), Hasidic/Chabad tradition