I join others who have expressed profound gratitude for the life and thought of Arthur Peacocke. I recall some high points in my interaction with him during a period of forty years as an intellectual companion and personal friend. Some similarities in our thinking about evolution, emergence, top-down causality, and continuing creation are indicated. Four points of difference are then discussed: (1) Emergent monism or two-aspect process events? (2) Panentheism or process theism? (3) Creation ex nihilo and/or continuing creation? (4) Voluntary or necessary limitation of God's power? Even when we differed I have benefited immensely from our ongoing interaction.