To reject heaven and accept atheism - is not merely about science, facts, beliefs, etc - it is about accepting the reality of all those who have died - being really dead. It is accepting the same reality about everyone you love NOW one day being - really dead. It is accepting the same reality about YOU one day.
The older you are, the more dear loved ones have passed away, the harder it will be to reject the notions of religion. To reject religion requires the re-mourning of everyone who you love who has died.
The complete post is quite long and just as good as this quote.
A person is nature plus nurture, and besides, I'm not even sure if DNA alone would produce the same baby. Epigenetics, womb variation, and whatnot all have an effect even before a child is born.
Go see for yourself.
The complete post is quite long and just as good as this quote.