I have frequently detected myself in such kind of mistakes... in a total misapprehension of character at some point or other: fancying people so much more gay or grave, or ingenious or stupid than they really are, and I can hardly tell why, or in what the deception originated. Sometimes one is guided by what other people say of them, without giving oneself time to deliberate and judge.

Sense and Sensibility: a Novel (ed. Richard Bentley, 1833)