"A moral being is one who is capable of reflecting on his past actions and their motives - of approving of some and disapproving of others"
About this Quote
The intent is quietly radical. By defining morality as self-scrutiny rather than obedience, Darwin relocates ethics from external authority to an internal process that can be studied, compared across species, and explained through development. This lines up with his larger project in The Descent of Man: human exceptionalism gets trimmed down to differences of degree. Moral life becomes continuous with social instincts and intelligence, not a separate substance injected into us.
The subtext is also a warning. If morality depends on reflecting on motives, then moral failure isn’t just doing harm; it’s refusing to look. The definition privileges psychological honesty over performative virtue. It also anticipates a modern discomfort: motives are messy, self-knowledge is partial, and memory is biased. Darwin’s moral being is not a saint; it’s an animal capable of self-critique - and therefore capable of guilt, rationalization, growth, and hypocrisy.
In Victorian context, that’s evolutionary theory doing cultural work: dethroning moral certainty while offering a spare, sturdy replacement built from human (and animal) faculties rather than divine decree.
Quote Details
| Topic | Ethics & Morality |
|---|---|
| Source | Charles Darwin, The Descent of Man, and Selection in Relation to Sex (1871). Passage occurs in Darwin's discussion of the moral sense and reflection on past actions and motives. |
| Cite | Cite this Quote |
Citation Formats
APA Style (7th ed.)
Darwin, Charles. (n.d.). A moral being is one who is capable of reflecting on his past actions and their motives - of approving of some and disapproving of others. FixQuotes. https://fixquotes.com/quotes/a-moral-being-is-one-who-is-capable-of-reflecting-30477/
Chicago Style
Darwin, Charles. "A moral being is one who is capable of reflecting on his past actions and their motives - of approving of some and disapproving of others." FixQuotes. Accessed February 3, 2026. https://fixquotes.com/quotes/a-moral-being-is-one-who-is-capable-of-reflecting-30477/.
MLA Style (9th ed.)
"A moral being is one who is capable of reflecting on his past actions and their motives - of approving of some and disapproving of others." FixQuotes, https://fixquotes.com/quotes/a-moral-being-is-one-who-is-capable-of-reflecting-30477/. Accessed 3 Feb. 2026.










