Of the many forms of false culture, a premature converse with abstractions is perhaps the most likely to prove fatal to the growth of a masculine vigour of intellect.

— George Boole, A Treatise on Differential Equations (1859)

Source: http://www-history.mcs.st-and.ac.uk/Quotations/Boole.html

From his 1859 treatise; the citation names a quotations collection as its source.

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