...But you Germans are born with an aptitude for borrowing; you can’t help yourselves... 
(AKA Ralph Iron) Olive Schreiner 「The Story of an African Farm」
...Among our notes, I find recorded many incidentsillustrative of the aptitude which the savage mindpossesses for dissimulation...
W. E. Webb 「Buffalo Land」
...The quality of theirmutton was equal, while their aptitude to fatten was decidedlysuperior to their longer-legged contemporaries...
Richard L. Allen 「Domestic Animals」
..."Gentlemen," he began, looking down academically upon the motley crowdas though doubting the aptitude of his salutation...
Various 「Astounding Stories of Super-Science, May, 1930」
...Long hours of practice haddeveloped his natural aptitude into real skill...
Charles Willard Diffin 「Brood of the Dark Moon」
..." Every day may be seen children, who, to a certain age—display a great deal of ingenuity, a strong aptitude for the sciences, who finish by falling into stupidity...
Paul Henri Thiery (Baron D'Holbach) 「The System of Nature, Volume 1」
...They were masters, in fact, of the astronomy of theirday, a science for which the Chaldæans had shown from the earliest agesthe most remarkable aptitude...
Richard A. Proctor 「Myths and Marvels of Astronomy」
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