What is food for thought?

Famous quotes containing the words food for, food and/or thought:

    A few pieces of fat pine were a great treasure. It is interesting to remember how much of this food for fire is still concealed in the bowels of the earth.
    Henry David Thoreau (1817–1862)

    Civilization means food and literature all round. Beefsteaks and fiction magazines for all. First-class proteins for the body, fourth-class love-stories for the spirit.
    Aldous Huxley (1894–1963)

    Soldier, there is a war between the mind
    And sky, between thought and day and night. It is
    For that the poet is always in the sun,
    Patches the moon together in his room
    To his Virgilian cadences, up down,
    Up down. It is a war that never ends.
    Wallace Stevens (1879–1955)