We may safely treat "false" and "not" as synonyms(imt78)
The process that you come to know the word "false" is applicable is much more difficult than the corresponding one for "true"(imt80)
The sole method of discovering error is the experience of surprise owing to a disappointed expectation(imt216)
We feel that there could be no falsehood if there were no minds to make mistakes(pe152)
philosophic error chiefly appears in the shape of inconsistency(pl3)
Gottfried Leibniz rejects Descartes' principle, that errors depend more on the will than on the intellect(pl198)
Our misjudgment comes from confused perception, or prime matter, or limitation(pl198)