Most people, babies, start out with little if any thought of any kind. And thinking critically is not limited to atheists. Two examples, the second with a "how to":Most people 'start out' with no beliefs. The religious beliefs of their parents are downloaded some time later, before the child has developed any firewalls or ability to reason or think critically.
Critical Thinking in Religious Education
The Importance of Critical Thinking in Religion
But How Do I Practice Critical Thinking?- Ask questions
- Learn logic and reasoning skills.
- Study your religion and others.
- Study opposing views
- Study related fields in both the sciences and philosophy, including the philosophy of religion.
- Find reasons for your beliefs that satisfy not only you but would be persuasive to others.
- Seek the truth, whatever it may be, regardless of what you wish or hope to be true.
- Don’t just bash other views or defend your own.
- Seek not only to criticize but to understand.
- Humbly acknowledge when you are wrong.
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