“Error is the force that welds men together; truth is communicated to men only by deeds of truth. Only deeds of truth, by introducing light into the conscience of each individual, can dissolve the cohesion of error, and detach men one by one from the mass united together by the cohesion of error.”

Source: The Way Towards The Blessed Life or the Doctrine of Religion 1806, P. 26-27

The complete political works. Rights of man: being an answer to Mr. Burke's attack on the French Revolution, p. 306
1790s

Es ist so gewiß als wunderbar, daß Wahrheit und Irrthum aus Einer Quelle entstehen; deßwegen man oft dem Irrthum nicht schaden darf, weil man zugleich der Wahrheit schadet.
Maxims and Reflections (1833)

A Retrospective Glance at the Lifework of a Master of Books
Fragments of a Poetics of Fire (1988)

Book II, p. 415.
Collected Works

Der Irrthum verhält sich gegen das Wahre wie der Schlaf gegen das Wachen. Ich habe bemerkt, daß man aus dem Irren sich wie erquickt wieder zu dem Wahren hinwende.
Maxim 331, trans. Stopp
Maxims and Reflections (1833)

p, 125
The History of Oracles, and the Cheats of the Pagan Priests (1688)

Source: 1930s-1951, Philosophical Occasions 1912-1951 (1993), Ch. 7 : Remarks on Frazer's Golden Bough, p. 119