Each readily falls into excess

Bacon’s 55th aphorism in the Novum Organum, translated by Joseph Devey, some two centuries before Darwin on lumpers and splitters:

The greatest and, perhaps, radical distinction between different men’s dispositions for philosophy and the sciences is this, that some are more vigorous and active in observing the differences of things, others in observing their resemblances; for a steady and acute disposition can fix its thoughts, and dwell upon and adhere to a point, through all the refinements of differences, but those that are sublime and discursive recognize and compare even the most delicate and general resemblances; each of them readily falls into excess, by catching either at nice distinctions or shadows of resemblance.

Cf. Stravinsky.