“It's the most essential thing of all just because it's not a matter of how you do it at all, but of whether you do it. Like being born, or cooking: how you do it is less important than whether you do it. You can find thousands of books on prayer that give you methods of praying, hundreds of "hows"; but they do you no good at all unless you actually pray. Otherwise it's like reading a cookbook instead of cooking. You can't eat a cookbook!”

American philosopher and professor, Catholic convert

Peter John Kreeft is an American philosopher and professor, associated with Boston College and The King’s College. A Catholic convert, he has built a long career writing on Christian philosophy, theology, and apologetics. He has written more than eighty books in those fields, and his work often focuses on defending and explaining the Christian faith. He is also known for co-formulating Twenty Arguments for the Existence of God with Ronald K. Tacelli in their Handbook of Christian Apologetics.