The tree which moves some to tears of joy is in the Eyes of others only a Green thing which stands in the way. Some see Nature all Ridicule and Deformity, and by these I shall not regulate my proportions; and some scarce see Nature at all. But to the Eyes of the Man of Imagination, Nature is Imagination itself. As a man is, so he sees. As the Eye is formed, such are its Powers.
Source:Letter to Revd. Dr. Trusier (August 23, 1799)