The idea that those can be sufficient in and of themselves is excessively solipsistic to me. It effectively makes the maximum lifespan of the universe 120 years, less for most people. They certainly are necessary, but not sufficient.
When you consider the subjective nature of morality, where you find value is really your own choice. These things may not be sufficient to you, but to people like me, they are. As an agnostic, I have no absolute morality to put faith in, so if I choose to find any value or purpose in my existence, I can choose what those things are. Although I am not indoctrinated by religion, I cannot deny that I am indoctrinated by my culture and my special instincts. As much as I try to break free and examine my purpose and value objectively, I inevitably fail and must commit myself to my highly simplistic moral purpose to work for the betterment of mankind or of all living things.
