We hold in this case to our old idea, and say: If there be evolution, there must be an evolver.
We p. xxiiihold in this case to our old idea, and say—If there be evolution, there must be an evolver.
This mode of popular speech reached the climax of absurdity when it was gravely argued that "Evolution implies an evolver."
1640s, "to unfold, open out, expand," from Latin evolvere "to unroll," especially of books; figuratively "to make clear, disclose; to produce, develop," from ex- "out" (see ex-) + volvere "to roll" (see volvox). Meaning "to develop by natural processes to a higher state" is from 1832. Related: Evolved; evolving.