Dr. Ferris was talking about the crusaders of science and about the years of selfless devotion, unremitting toil and persevering research that had gone into Project X. It was odd-thought Dr. Stadler, studying the ruins of the farmthat there should be a herd of goats in the midst of such desolation.
There are no more uses of "persevere" in the book.
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We will persevere through these difficult times. Better days are ahead.
Despite an injured ankle, she persevered in overtime to help her team win.