C.N. Douglas, comp. Forty Thousand Quotations: Prose and Poetical. 1917.
Imposition
I could hardly feel much confidence in a man who had never been imposed upon.
Hare.
To the generality of men you cannot give a stronger hint for them to impose upon you than by imposing upon yourself.
Fielding.
There are cases in which a man would have been ashamed not to have been imposed on. There is a confidence necessary to human intercourse, and without which men are more injured by their suspicions than they could be by the perfidy of others.
Burke.