cycles, lifespan, years, decades, generations, millennia, eons, epochs, life expectancy, humankind, life, adulthood, timespan, twenties, finiteness, mankind, threescore, eternities, planet, forties, terawatt, adolescence, wartimes, disintegrations, privation, century, preadolescence, aeons, civilization, presidencies, permian period, hadean eon, careers, oligocene epoch, grandchildren, thirties, thousandfold, perfectibility, geezerhood, ejaculations, earths, nanosecond, orgasms, radioactive decay, universe, immiseration, babyhood, pliocene epoch, human beings, childbearing, skyrocket, undreamt, pontificate, magnitudes, times, christmases, dotage, megatons, millenia, pleistocene epoch, diminishment, hundred thousand, educations, unborrowed, cataclysm, triassic period, wars, days, eras, mesozoic era, easters, periods, kindnesses, awakenings, progeny, icecaps, tenures, hours, cretaceous period, aprils, inheritors, profounder, decays, cambrian period, painfulness, ravages, atime, mya, disfigurements, depravation, trillions, offspring, ad infinitum, history, sixties, span, nanometers, imaginings, legacies, orbits, ghastliness, impoverishment, lifetime, spans, durations, maturities, runs, widths, densities, lengths, outputs, absorptions, duration, ex, exposures, frequencies, ranges, approximate, baselines, consumptions, i.e.