Middle of the road
These words from Dwight D. Eisenhower still have weight decades later:
“People talk about the middle of the road as though it were unacceptable. Actually, all human problems, excepting morals, come into the gray areas. Things are not all black and white. There have to be compromises. The middle of the road is all of the usable surface. The extremes, right and left, are in the gutters.”
Edges are important. Pushing boundaries is part of making things better.
However, in many areas of life, the “middle of the road” is where we need to find ourselves in order to make any progress at all. It’s the usable surface.