Now, by what signs are Nature's lucky strokes recognised among men? They are recognised by the fact any such lucky stroke gladdens our senses; that he is carved from one integral block, which is hard, sweet, and fragrant as well. He enjoys that only which is good for him; his pleasure, his desire, ceases when the limits of that which is good for him are overstepped. He divines remedies for injuries; he knows how to turn serious accidents to his own advantage; that which does not kill him makes him stronger.