It was as follows: “For the definition of man, considered from our point of view, neither anatomical, nor physiological, nor psychological contemporary knowledge of his symptoms can assist us, since they are inherent in one degree or another in every man and consequently apply equally to all. Hence they do not enable us to establish the exact difference which we wish to establish between people. This difference can only be formulated in the following terms: ‘Man is a being who can do’, and ‘to do’ means to act consciously and by one’s own initiative”. BTG XLVIII