"A period of about twelve years measured the beat of the pendulum. After the Declaration of Independence, twelve years had been needed to create an efficient Constitution; another twelve years of energy brought a reaction against the government then created; a third period of twelve years was ending in a sweep toward still greater energy; and already a child could calculate the result of a few more such returns."

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We tend to overestimate what we can do in a short period, and underestimate what we can do over a long period, provided we work slowly and consistently. Anthony Trollope, the nineteenth-century writer who managed to be a prolific novelist while also revolutionizing the British postal system, observed, “A small daily task, if it be really daily, will beat the labours of a spasmodic Hercules.” Over the long run, the unglamorous habit of frequency fosters both productivity and creativity.

— Gretchen Rubin