THE PHYSICAL BASIS OF LIFE 47 



than to record and analyze the existino- order of phenom- 

 ena in living systems, without losing sleep over the im- 

 aginary prohlem of a unifying principle. Let us politely 

 salute all these uncomfortable possibilities and go our 

 way. For my part, 1 hnd it more amusing to look forward 

 to a day when the great riddle may give up its secret. 



