556 <br /> <br />The Brain, within its Groove <br />Runs evenly—and true— <br />But let a Splinter swerve— <br />'Twere easier for You— <br /> <br />To put a Current back— <br />When Floods have slit the Hills— <br />And scooped a Turnpike for Themselves— <br />And trodden out the Mills—<br /><br />Emily Dickinson<br /><br />http://www.poemhunter.com/poem/the-brain-within-its-groove/
