Aristotle is credited with saying that it is a mark of an educated mind to entertain a thought without accepting it. That same attribute is one of the hallmarks of a life in Christ. There are two central facets involved in a Christ-follower entertaining a thought without accepting it:
1) the spiritual dynamic of the Spirit of God living in us who "will teach you all things" (John 14:26), and 2) the human dynamic of critical thinking.
I'm sure that every generation laments that it seems its youth have lost the ability to think, and let me join the parade. But let's not just make this a rant about young people. Lack of critical thinking is not a deficiency restricted to our youth, but it seems like irrational actions abound in all age groups. For example, let's think and talk about a topic we can't talk about almost anywhere (even in church) for fear of offending someone. Let's talk about religion.
In the world of religion, thinking can land you in hot water. No doubt about it. So why should I encourage you to think about religious stuff?