Scholars, amateur scientists, aspiring men of letters – just about anyone with intellectual ambition in the seventeenth and eighteenth centuries was likely to keep a commonplace book. The great minds of the period – Milton, Bacon, Locke – were zealous believers in the memory enhancing powers of the commonplace book. In its most customary form, “commonplacing,” as it was called, involved transcribing interesting or inspirational passages from one’s reading, assembling a personalized encyclopedia of quotations. There is a distinct self-help quality to the early descriptions of commonplacing’s virtues: maintaining the books enabled one to “lay up a fund of knowledge, from which we may at all times select what is useful in the several pursuits of life.”
From “Where Good Ideas Come From: The Natural History of Innovation” by Steven Johnson – Riverhead Books
