There are scholars among them, who had spent more years in acquiring abstruse lore, connected with the divine profession, than Mr. Dimmesdale had lived; and who might well, therefore, be more profoundly versed in such solid and valuable attainments than their youthful brother.
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Show samples from other sources
The professor’s lectures were so abstruse that students tended to avoid them.
She wanted a bottom-line answer without the abstruse analysis.