My problem with humanism is “aspire to the greater good of humanity”
Like religion, this humanism (and its focus on humans) seems to assume the dubious notion that humankind is the pinnacle of evolution. In doing so it apparently violates another of their sentiments that “Knowledge of the world is derived by observation, experimentation, and rational analysis”.
The knowledge they commend suggests that humans are highly unlikely to be a permanent feature in the future of the universe. It also suggests that humans may not even be the precursor of future evolved occupants of the world (unless it is something they triggered such as silicon-based intelligence). The purpose I see in life is to contribute to evolution and go away when our purpose is exhausted.
In my opinion, humanism also directs attention away from the notion that the entire planet is a single organism (Gaia?) with multiple components just as special as humanity - and absolutely essential to the existence of humanity. Since our current knowledge of what is significant to humans is woefully lacking, it behooves us to recognize that “the greater good of humanity” is intimately linked to the greater good of the planet and the greater good of many other components of our planet.
If I have to have a label, I suppose scientific pantheist would come closest to describing me.
Irmin: The theism in pantheism is unacceptable to those who find no god anywhere. The entire universe is obviously a system yet, no single larger part appears necessary for the continuation of out universe. Take away a species and the universe goes on…including the human species. Take away a star or two the universe goes on without them. Take away god, and no one would notice at all except, perhaps, those who made the concept up out of nothing but human desire for meeting a human need using and ignorant concept as the solution to greater ignorance of reality.
The universe is to be studied in awe to give you and I and our posterity the best chances to enjoy life to the max as each of us defines it. This enjoyment desire is the base of morality. God or theism is just stupid to indicate any need for a god that explains ignorance is needed for morality to exists.
So, pantheism or any explanation is completely unnecessary for anything whatsoever. Just a desire to live fully is required. And it just so happens in reality that other people besides ourselves are needed. None would deny this in this world save supremacist gods, Like Jesus, and communists like Marx.