Wallace’s greatest “heresy” was to become, after his co-discovery of natural selection, “godfather” of the modern theory of intelligent design.
Every grain of sand is a link in an essential causal chain.
“Some may ask, ‘What is the origin of the engineers? Therefore I don’t believe that this machine has been designed.’”
The material universe must be caused, and it cannot be the cause of its own existence.
“If only Tiktaalik had inherited three pairs of stubby little old fins we’d be centaurs now.”