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| Laughter is the greatest weapon we have and we, as humans, use it the least. | | Mark Twain | |
| Laughter is the sensation of feeling good all over and showing it principally in one place. | | Josh Billings | |
| Laughter is the sun that drives winter from the human face. | | Victor Hugo | |
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| Laughter is wine for the soul-laughter soft, or loud and deep, tinged through with seriousness. the hilarious declaration made by man that life is worth living. | | Sean O'Casey | |
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| One can know a man from his laugh, and if you like a man's laugh before you know anything of him, you may confidently say that he is a good man. | | Fyodor Dostoyevsky | |
| One horse-laugh is worth ten thousand syllogisms. It is not only more effective; it is also vastly more intelligent. | | Henry Louis Mencken | |
| Perhaps I know best why it is man alone who laughs; he alone suffers so deeply that he had to invent laughter. | | Friedrich Nietzsche | |
| Really, sex and laughter do go very well together, and I wondered - and I still do - which is more important. | | Hermione Gingold | |
| The human race has one really effective weapon, and that is laughter. | | Mark Twain | |
| The human race has only one really effective weapon and that is laughter. | | Mark Twain | |
| The man who cannot laugh is not only fit for treasons, stratagems and spoils; but his whole life is already a treason and a stratagem | | Thomas Carlyle | |
| The penalty for laughing in a courtroom is six months in jail; if it were not for this penalty, the jury would never hear the evidence. | | Henry Louis Mencken | |
| The person who knows how to laugh at himself will never cease to be amused. | | Shirley MacLaine | |
| The political and commercial morals of the United States are not merely food for laughter, they are an entire banquet | | Mark Twain | |
| The world is not respectable; it is mortal, tormented, confused, deluded forever; but it is shot through with beauty, with love, with glints of courage and laughter; and in these, the spirit blooms timidly, and struggles to the light amid the thorns. | | George Santayana | |
| There are none more abusive to others than they that lie most open to it themselves; but the humor goes round, and he that laughs at me today will have somebody to laugh at him tomorrow | | Seneca | |
