“Sacraments are like hoses. They are the channels of the living water of God's grace. Our faith is like opening the faucet. We can open it a lot, a little, or not at all.”

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.