Heart

Heart

The heart is a hollow muscle that pumps blood throughout the blood vessels by repeated, rhythmic contractions. It is found in all animals with a circulatory system (including all vertebrates).

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Famous quotes containing the word heart:

    If others surpass you in knowledge, in charm, in strength, in fortune, you have other causes to blame for it; but if you yield to them in stoutness of heart you have only yourself to blame.
    Michel de Montaigne (1533–1592)

    There can be a fundamental gulf of gracelessness in a human heart which neither our love nor our courage can bridge.
    Patrick, Mrs. Campbell (1865–1940)

    Long, long, afterward, in an oak
    I found the arrow, still unbroke;
    And the song, from beginning to end,
    I found again in the heart of a friend.
    Henry Wadsworth Longfellow (1809–1882)