Assertion

Definition and stakes

Portrait of G. E. Moore G. E. Moore,  Ethics — Chapter III (1912)

“ Whenever we make any assertion whatever (unless we do not mean what we say) we are always expressing one or other of two things—namely, either that we think the thing in question to be so or that we know it to be so. ”
Source: Wikisource

Portrait of John Henry Newman John Henry Newman,  An Essay in Aid of a Grammar of Assent

“ No one is likely to deny that a question is distinct both from a conclusion and from an assertion; and an assertion will be found to be equally distinct from a conclusion. For, if we rest our affirmation on arguments, this shows that we are not asserting; and, when we assert, we do not argue. An assertion is as distinct from a conclusion, as a word of command is from a persuasion or recommendation. ”
Source: Gutenberg

Portrait of John Henry Newman John Henry Newman,  An Essay in Aid of a Grammar of Assent

“ These three mental acts are Doubt, Inference, and Assent. A question is the expression of a doubt; a conclusion is the expression of an act of inference; and an assertion is the expression of an act of assent. To doubt, for instance, is not to see one’s way to hold that Free-trade is or that it is not a benefit; to infer, is to hold on sufficient grounds that Free-trade may, must, or should be a benefit; to assent to the proposition, is to hold that Free-trade is a benefit. ”
Source: Gutenberg

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