Life consists of sadness too. And sadness is also beautiful; it has its own depth, its own delicacy, its own deliciousness, its own taste. A man is poorer if he has not known sadness; he is impoverished, very much impoverished. His laughter will be shallow, his laughter will not have depth, because depth comes only through sadness. A man who knows sadness, if he laughs, his laughter will have depth. His laughter will have something of his sadness too, his laughter will be more colorful.