And if I laugh at any mortal thing, 'Tis that I may not weep.

And if I laugh at any mortal thing, 'Tis that I may not weep.

Laugh, and the world laughs with you; Weep, and you weep alone.

Laugh, and the world laughs with you; Weep, and you weep alone.

A good laugh is sunshine in a house.

A good laugh is sunshine in a house.

Laughter is man's most distinctive emotional expression.

Laughter is man's most distinctive emotional expression.

Laughter is by definition healthy.

Laughter is by definition healthy.

A day without laughter is a day wasted.

A day without laughter is a day wasted.

One horse-laugh is worth ten thousand syllogisms. It is not only more effective; it is also vastly more intelligent.

One horse-laugh is worth ten thousand syllogisms. It is not only more effective; it is also vastly more intelligent.

We cannot really love anyone with with whom we never laugh.

We cannot really love anyone with with whom we never laugh.

A gentleman is often seen, but very seldom heard to laugh.

A gentleman is often seen, but very seldom heard to laugh.