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:

    Ah! as the heart grows older
    It will come to such sights colder
    By and by, not spare a sigh
    Though worlds of wanwood leafmeal lie;
    And yet you will weep and know why.
    Gerard Manley Hopkins (1844–1889)

    We talk about a representative government; but what a monster of a government is that where the noblest faculties of the mind, and the whole heart, are not represented! A semihuman tiger or ox, stalking over the earth, with its heart taken out and the top of its brain shot away. Heroes have fought well on their stumps when their legs were shot off, but I never heard of any good done by such a government as that.
    Henry David Thoreau (1817–1862)

    O heart the winds have shaken, the unappeasable host
    Is comelier than candles at Mother Mary’s feet.
    William Butler Yeats (1865–1939)