Physiologists and molecular biologists regularly fall into the trap of overlooking this distinction, which is fundamental to biology, history, and human behavior. Physiology and molecular biology can do no more than identify proximate mechanisms; only evolutionary biology can provide ultimate causal explanations.

— Jared Diamond Why Is Sex Fun?: The Evolution of Human Sexuality (1997)

More quotes by Jared Diamond

Collapse: How Societies Choose to Fail or Succeed (2005)

Collapse: How Societies Choose to Fail or Succeed (2005)

Why Is Sex Fun?: The Evolution of Human Sexuality (1997)

Why Is Sex Fun?: The Evolution of Human Sexuality (1997)

Collapse: How Societies Choose to Fail or Succeed (2005)

Quote text and notes from Wikiquote: Jared Diamond (page history), available under CC BY-SA 4.0. Source quality and labels are our own summary of what Wikiquote records.