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Six years ago when attending a Ciba Symposium on aging in London I had the happy surprise and pleasure of being in the company of Dr. Medawar for a couple of days. This was a most rewarding experience. One of the byproducts of this meeting was that I looked up many of Medawar's published works which ran more to biological than medical themes. I formed a very high regard for his capabilities, his imagination, and by no means least, his brilliant capacity to clarify abstruse ideas in elegant language. He has the ability to crystallize many a biological truth in prose so graceful and lively that one learns willy-nilly. Only afterwards does one realize that such artistry betokens the rigorous discipline of excellence as well as a bountiful array of talent. The six essays included in The Future of Man were the BBC Reith Lectures of 1959. It is singularly