Nature is too thin a screen, — the glory of the One breaks in everywhere.

Ralph Waldo Emerson (1803-1882) American essayist, lecturer, poet

“Religion,” The Present Age Lecture 7, Boston (1840-01-29)
    (Source)

Lecture series initially presented 4 Dec 1839 - 12 Feb 1840. This particular phrase can be found in Emerson's writing going back to 1837. It also was reused in his Cambridge lecture, "The Preacher" (5 May 1879), in a somewhat different context.

The phrase is also rendered "Nature is too thin a screen; the glory of the omnipresent God bursts through everywhere."