Who said "There is a place where the sidewalk ends."?

This quote is attributed to Carl Sandburg.

There is a place where the sidewalk ends. - Carl Sandburg

"There is a place where the sidewalk ends."

Carl Sandburg Imagination

Poet American 1878–1967

"I am the people—the mob—the crowd—the mass."

"Life is like an onion; you peel off one layer at a time and sometimes you weep."

"Nothing happens unless first we dream."

"I have always been ahead of my time."

"Imagination is more powerful than knowledge."

"The world is full of wonders if you know where to look."

"You have the imagination of a child, Lucy"

"The world is full of mysteries waiting to be solved."