Pew: Americans giving up on God, miracles
"About half of current religious 'nones' who were raised in a religion (49%) indicate that a lack of belief led them to move away from religion. This includes many respondents who mention 'science' as the reason they do not believe in religious teachings, including one who said 'I'm a scientist now, and I don't believe in miracles.' Others reference 'common sense,' 'logic' or a 'lack of evidence' – or simply say they do not believe in God."
"About half of current religious 'nones' who were raised in a religion (49%) indicate that a lack of belief led them to move away from religion. This includes many respondents who mention 'science' as the reason they do not believe in religious teachings, including one who said 'I'm a scientist now, and I don't believe in miracles.' Others reference 'common sense,' 'logic' or a 'lack of evidence' – or simply say they do not believe in God."