A gap in the paling ...

Pursue some path, however narrow and crooked, in which you can walk with love and reverence. Wherever a man separates from the multitude and goes his own way, there is a fork in the road, though the travellers along the highway see only a gap in the paling.

From Henry David Thoreau, The Journal, 1837-1861, edited by Damion Searls (New York, 2009), entry for Oct. 18. 1855.