Ray Bradbury. Sound of thunder (№ 145950)

Scrunch up the mouse - this would be tantamount to a earthquake that will distort the image of the whole Earth, will radically change our destinies. The death of that one cave man - death of a billion others yet unborn are throttled in the womb. Maybe Rome never rises on its seven hills. Europe will forever remain deaf to the forest, and only Asia will blossom lush life. Step on a mouse and you crush the pyramids. Step on a mouse and you leave your Eternity to a dent the size the Grand canyon. Will not be Queen Elizabeth, Washington will cross the Delaware. The United States did not appear. So be careful. Stay on the path. Never go off it!