The ridiculous is produced by any defect that is unattended by pain, or fatal consequences; thus, an ugly and deformed countenance does not fail to cause laughter, if it is not occasioned by pain.
There is nothing more distressing ... than the hard, scoffing spirit which treats the allegation of dishonesty in a public man as a cause for laughter. Such laughter is worse than the crackling of thorns under a pot, for it denotes not merely the vacant mind, but the heart in which high emotions have been choked before they could grow to fruition.
The essence of all jokes, of all comedy, seems to be an honest or well intended halfness; a non performance of that which is pretended to be performed, at the same time that one is giving loud pledges of performance. The balking of the intellect, is comedy and it announces itself in the pleasant spasms we call laughter.
English humor is hard to appreciate, though, unless you are trained to it. The English papers, in reporting my speeches, always put 'laughter' in the wrong place.
I would only believe in a god who could dance. And when I saw my devil I found him serious, thorough, profound, and solemn: it was the spirit of gravity—through him all things fall. Not by wrath does one kill but by laughter. Come, let us kill the spirit of gravity!
I have been confronted with many difficulties throughout the course of my life, and my country is going through a critical period. But I laugh often, and my laughter is contagious. When people ask me how I find the strength to laugh now, I reply that I am a professional laugher.
Learn to laugh. Seriousness is a sin, and it is a disease. Laughter has tremendous beauty, a lightness. It will bring lightness to you, and it will give you wings to fly. And life is so full of opportunities. You just need the sensitivity. And create chances for other people to laugh. Laughter should be one of the most valued, cherished qualities of human beings - because only man can laugh, no animals are capable of it. Because it is human, it must be of the highest order. To repress it is to destroy a human quality.