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).

Famous quotes containing the word heart:

“When people do not respect us we are sharply offended; yet deep down in his private heart no man much respects himself.”
—Mark Twain [Samuel Langhorne Clemens] (1835–1910)

“With steady eye on the real issue, let us reinaugurate the good old “central ideas” of the Republic. We can do it. The human heart is with us—God is with us. We shall again be able not to declare, that “all States as States, are equal,” nor yet that “all citizens as citizens are equal,” but to renew the broader, better declaration, including both these and much more, that “all men are created equal.””
—Abraham Lincoln (1809–1865)

“I cast my heart into my rhymes,
That you, in the dim coming times,
May know how my heart went with them
After the red-rose-bordered hem.”
—William Butler Yeats (1865–1939)