When hopes and dreams are loose in the streets, it is well for the timid to lock doors, shutter windows and lie low until the wrath has passed. For there is often a monstrous incongruity between the hopes, however noble and tender, and the action which follows them. It is as if ivied maidens and garlanded youths were to herald the four horsemen of the apocalypse .Eric Hoffer
One definition of simultaneity differs from another because events that are simultaneous for one definition occur successively for another. What may be a simultaneity projection of a moving segment for one definition is a "focal-plane shutter photograph" for another.Hans Reichenbach, in 'The Philosophy of Space and Time (1928), as translated by Maria Reichenbach (1957), § 25
I had thought, seeing how bitter is that wind That shakes the shutter, to have brought to mind All those that manhood tried, or childhood loved Or boyish intellect approved, With some appropriate commentary on each; Until imagination brought A fitter welcome; but a thought Of that late death took all my heart for speech.William Butler Yeats, "In Memory Of Major Robert Gregory", st. 12, The Wild Swans at Coole, (1919).