In terminology, Darwinism is a theory of the origin and perpetuation of new species of animals and plants that offspring of a given organism vary, that natural selection favors the survival of some of these variations over others, that new species have arisen and may continue to arise by these processes, and that widely divergent groups of plants and animals have arisen from the same ancestors; broadly: biological evolutionism. [1]

Quotes
The following are related quotes:

“If Darwinism is true, then there are five inescapable conclusions: 1) there’s no evidence for god, 2) there’s no life after death, 3) there’s no absolute foundation for right or wrong, 4) there’s no ultimate meaning for life, and 5) people don’t really have free will.”
— William Provine (1988), as summarized by Lee Strobel (The Case for a Creator, 2004) [2]

See also
● Goetheanism

References
1. Merriam-Webster Collegiate Dictionary, 2000.
2. (a) Provine, William. (1988), “Evolution and the Foundation of Ethics”, MLB Science, 3(1):25-29; a shorter version appeared as a guest editorial in the Sep 5, 1988 issue of The Scientist, with correspondence and rebuttals in succeeding issues; in: Science, Technology, and Social Progress (editor: Steven Goldman) (pg. 261-62). Lehigh University Press.
(b) Johnson, Phillip E. (1993). Darwin on Trial (pgs. 155-56). Intervarsity Press, 2010.
(c) Strobel, Lee. (2004). The Case for a Creator: a Journalist Investigates Scientific Evidence that Points Toward God (pg. 18). Zondervan, 2009.