It is remarkable that persons who speculate the most boldly often conform with the most perfect quietude to the external regulations of society.
A tendency to speculation, though it may keep women quiet, as it does man, yet makes her sad.
She assumed a freedom of speculation, then common enough on the other side of the Atlantic, but which our forefathers, had they known it, would have held to be a deadlier crime than that stigmatised by the scarlet letter.
But Hester Prynne, with a mind of native courage and activity, and for so long a period not merely estranged, but outlawed from society, had habituated herself to such latitude of speculation as was altogether foreign to the clergyman.
There are no more uses of "speculate" in the book.
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philosophers have speculated on the question of God for thousands of years
We were speculating as to whether a president would have to resign after that kind of scandal.