Words from a very smart man

in a nutshell:
1 if humankind lasts for ions or if humankind completely dies tomorrow, it will have no significant impact on the universe.
2 Our actions and consequences have literally been engrained into our morality only to keep people from being punished.
3 if you keep saying and practicing the same things over and over it becomes ritualistic. over thousands of years ritualistic practices virtually become religion.