Charles Taylor, A Secular Age (2007).

“…I want to…examine our society as secular…the change I want to define and trace is one which takes us from a society in which it was virtually impossible not to believe in God, to one in which faith, even for the staunchest believer, is one human possibility among others. I may find it inconceivable that I would abandon my faith, but there are others, including possibly some very close to me, whose way of living I cannot in all honesty just dismiss as depraved, or blind, or unworthy, who have no faith (at least not in God, or the transcendent.) Belief in God is no longer axiomatic. There are alternatives. And this will also likely mean that at least in certain milieux, it may be hard to sustain one’s faith. There will be people who feel bound to give it up, even though they mourn its loss. This has been a recognisable experience in our societies, at least since the mid-nineteenth century. There will be many others to who faith never even seems as eligible possibility. There are certainly millions today of who this is true.” (kindle ebook location 68 of 13859)