Self-importance is our greatest enemy. Think about it - what weakens us is feeling offended by the deeds and misdeeds of our fellowmen. Our self-importance requires that we spend most of our lives offended by someone.
I wanted to convince you that you must learn to make every act count, since you are going to be here for only a short while, in fact, too short for witnessing all the marvels of it.
The trick is in what one emphasizes. We either make ourselves miserable, or we make ourselves happy. The amount of work is the same.