适者生存（英语：survival of the fittest）是英语的片语，是以竞争争取生存或优势之概念的总结。此概念由赫伯特·斯宾塞在1864年于其著作《生物原理》 (Principles of Biology) 提出。斯氏借此将经济学思想与达尔文的演化理论相较；而达尔文就把适者生存之概念称为自然选择。
相關條目
重言式
- Darwin's Untimely Burial （页面存档备份，存于互联网档案馆） by Stephen J. Gould
- Evolution and Philosophy: A Good Tautology is Hard to Find （页面存档备份，存于互联网档案馆） by John Wilkins, part of the talk.origins archive.
- CA500: "Survival of the fittest is a tautology" （页面存档备份，存于互联网档案馆） from the talk.origins index to creationist claims by Mark Ridley.
- Is "survival of the fittest" a tautology by Don Lindsay.
道德问题
- CA002: Survival of the fittest implies that "might makes right" （页面存档备份，存于互联网档案馆）
- David Hume - Dialogues Concerning Natural Religion
- Evolution and philosophy - Does right make right? （页面存档备份，存于互联网档案馆） by John S. Wilkins.
- "Survival of the fittest" by Alan Keyes.
- Darwinism and Laissez-Faire Capitalism （页面存档备份，存于互联网档案馆） from the Institute for Creation Research