As the human being matures, he/she learns about delayed gratification. In other words, we learn that grabbing it all for myself does not make for good feeling. It makes for animosity, hatred, and war. As we learn to know ourselves deeply, we learn that at times we must sacrifice something of great value, such as public prestige or social standing, in order to attain something of greater value such as personal integrity and honesty. We find that we feel best and get along better in this world if we are honest and have personal integrity. Thus, we find that sacrifice is at time warranted and beneficial.