Henry David Thoreau on Observation:
Many an object is not seen, though it falls within the range of our visual ray, because it does not come within the range of our intellectual ray, i.e. we are not looking for it. So, in the largest sense, we find only the world we look for. — Journal, 2 July 1857
Source: The Waldon Woods Project
And, remember . . . Feed Your Good Dog so your good dog always wins!