Full Idea
If there is any reality, then it consists of this: that there is in the being of things something which corresponds to the process of reasoning.
Gist of Idea
Realism is the belief that there is something in the being of things corresponding to our reasoning
Source
Charles Sanders Peirce (Reasoning and the Logic of Things [1898], III)
Book Reference
Peirce,Charles Sanders: 'Reasoning and the Logic of Things', ed/tr. Ketner,K.L. [Harvard 1992], p.161
A Reaction
A nice definition of realism, a little different from usual. I belief that the normal logic of daily thought corresponds (in its rules and connectives) to the way the world is. We evaluate success in logic by truth-preservation.