A person should always see himself as balanced and the entire world as balanced (i.e., his actions can tip the scale for the whole world).

לעולם יראה עצמו שקול וכל העולם כולו שקול
Shiurim in this topic
8943. Disagreements Over Yeshiva Positions and Spreading Chassidus חילוקי דעות על משרות בישיבה והפצת חסידות