Our little systems have their day;
They have their day and cease to be.
Source: In Memoriam A.H.H., Prologue.
-- Alfred, Lord Tennyson, (Aug 6 1809-1892), English poet; He was the Poet Laureate, 1850-92 who wrote Charge of the Light Brigade, 1854 and Idylls of the King, 1885.