...He is looked upon with envy by the credulous, and with exasperation by all others... 
Stewart Edward White 「African Camp Fires」
...Were I to relate some of the stories recorded of this animal I mightget accused, if not of being a romancer myself, at all events of beinga too credulous propagator of other people's romances...
Robert A. Sterndale 「Natural History of the Mammalia of India and Ceylon」
...In truth, there is nothing so credulous asuniversal incredulity...
Various 「Dog Stories from the "Spectator"」
...As was the historian,such were the auditors--inquisitive, credulous, easily moved bythe religious awe of patriotic enthusiasm...
Marcius Willson 「Mosaics of Grecian History」
...Our fathers saw many other prodigies in the skies; their descendants,less credulous, can study the facsimile reproduced in Fig...
Camille Flammarion Frances A. Welby 「Astronomy for Amateurs」
...The credulous Emperor confided in theprediction, and when the conduct of his brother seemed to justify hisbelief, he confined himself to his palace, and fell a prey to the fearwhich it inspired...
David Brewster 「The Martyrs of Science, or, The lives of Galileo, Tycho Brahe, and Kepler」
...When the astronomer Herschel was observing the southern sky fromthe Cape of Good Hope, the most clever hoax was perpetrated thatever was palmed upon a credulous public...
Henry Warren 「Recreations in Astronomy」
...In a word, the conscience of a credulous man is guided by men whose own conscience is in error, or whose interest extinguishes intelligence...
Jean Meslier Anna Knoop 「Superstition In All Ages (1732)」
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