with the cell, biology discovered its atom...to characterize life,it was henceforth essential to study the cell and analyze its structure: to single out the common denominators,necessary for the life of every cell;alternatively,to identify differences associated with the performannce ofspecial functions.
we must, however, acknowledge, as it seems to me, that man with all his noble qualities...still bears in his bodily frame the indelible stamp of his lowly origin.