Periaqueductal Gray Matter

Famous quotes containing the words gray and/or matter:

    Gross and obscure natures, however decorated, seem impure shambles; but character gives splendor to youth, and awe to wrinkled skin and gray hairs.
    Ralph Waldo Emerson (1803–1882)

    ... there isn’t a train I wouldn’t take,
    No matter where it’s going.
    Edna St. Vincent Millay (1892–1950)