The mistake of all that medical talk lies in the very fact that it connects the idea of health with the idea of care. What has health to do with care? Health has to do with carelessness. In special and abnormal cases it is necessary to have care. When we are peculiarly unhealthy it may be necessary to be careful in order to be healthy. But even then we are only trying to be healthy in order to be careless. If we are doctors we are speaking to exceptionally sick men, and they ought to be told to be careful. But when we are sociologists we are addressing the normal man, we are addressing humanity. And humanity ought to be told to be recklessness itself. For all the fundamental functions of a healthy man ought emphatically to be performed with pleasure and for pleasure; they emphatically ought not to be performed with precaution or for precaution. A man ought to eat because he has a good appetite to satisfy, and emphatically not because he has a body to sustain. A man ought to take exercise not because he is too fat, but because he loves foils or horses or high mountains, and loves them for their own sake. And a man ought to marry because he has fallen in love, and emphatically not because the world requires to be populated. The food will really renovate his tissues as long as he is not thinking about his tissues. The exercise will really get him into training so long as he is thinking about something else. And the marriage will really stand some chance of producing a generous-blooded generation if it had its origin in its own natural and generous excitement. It is the first law of health that our necessities should not be accepted as necessities; they should be accepted as luxuries. Let us, then, be careful about the small things, such as a scratch or a slight illness, or anything that can be managed with care. But in the name of all sanity, let us be careless about the important things, such as marriage, or the fountain of our very life will fail.