Backwards Quote by Charles Darwin

Laughter appears to stand in need of an echo, Listen to it carefully: it is not an articulate, clear, well-defined sound; it is something…

— Henri Bergson

Laughter is an interior convulsion, producing a distortion of the features and accompanied by inarticulate noises. It is infectious and, though intermittent, incurable.

— Ambrose Bierce

Laughter is a form of internal jogging. It moves your internal organs around. It enhances respiration. It is an igniter of great expectations.

— Norman Cousins

Laughter is the climax in the tragedy of seeing, hearing and smelling self-consciously.

— Wyndham Lewis

Laughter is the jam on the toast of life. It adds flavor, keeps it from being too dry, and makes it easier to swallow.

— Diane Johnson

Laughter is the sound of happiness flowing out to lift you up.

— Alberta Peedoodle

A laugh is the loud echo of a sigh; a sigh the faint echo of a laugh.

— Sean O'Casey

Now, a recent study from cardiologists at the University of Maryland, has shown that laughter may have a beneficial effect on the heart.

— Allen Klein

Laughter springs from the lawless part of our nature, and is purifying only in so far as there is a natural and unschooled goodness…

— Agnes Repplier

Laughter is simply a smile heard out loud, that echoes happiness and love.

— Anonymous

There's an energy that comes through the release of tension that is laughter.

— Twyla Tharp

Laughter is the buildup of tension in your body. You need it to blow up the balloon you're popping with your punchline.

— Tony Hinchcliffe