The fool hath said in his heart, There is no God. Psalm 14:1
"In his later years, Darwin was approached by Edward Aveling,
Karl Marx's son-in-law, who extended the hand of greeting to a fellow atheist, but Darwin corrected his inquirer by referring to himself as an agnostic.
Writing of this meeting some years later, Aveling consoled himself by pointing out that "Atheist is only Agnostic writ aggressive, and Agnostic is only Atheist writ respectable" (Aveling 1897, 1:323)."
MindsOfMen
"In his later years, Darwin was approached by Edward Aveling,
Karl Marx's son-in-law, who extended the hand of greeting to a fellow atheist, but Darwin corrected his inquirer by referring to himself as an agnostic.
Writing of this meeting some years later, Aveling consoled himself by pointing out that "Atheist is only Agnostic writ aggressive, and Agnostic is only Atheist writ respectable" (Aveling 1897, 1:323)."
MindsOfMen