The passional type is that which is reproduced under the sway of passion.
The habitual types are those which, frequently reproduced, come to modify even the bones of the man, and give him a particular constitution.
Habit is a second nature, in fact, a habitual movement fashions the material and physical being in such a manner as to create a type not inborn, and which is named habitual.
To recognize constitutional types, we study the movements of the body, and the profound action which the habit of these movements exercises upon the body; and, as the type produced by these movements is in perfect analogy with the formal, constitutional types, we come through this analogy to infer constant phenomena from the passional form. Thus all the formal types are brought back to the passional types.
Passional types explain habitual types, and these last explain constitutional types. Thus, when we know the sum of movements possible to an organ, when we know the sense of it, we arrive at that semeiotic through which the reason of a form is perfectly given.
Of Gesture Relative to its Modifying Apparatus.
Every gesture places itself in relation with the subject and the object.
It is rare that a movement tending toward an object does not touch the double form. Thus, in saying that a thing is admirable, we start from a multitude of physical centres whose sense we are to determine. When this sense is known, understanding the point of departure, we understand still better that of arrival.
This division, which is not made at random, is reproduced in the subjoined diagram.
1 represents the vital expression; 2, the intellectual; 3, the moral. We divide the face into three zones: the genal,[4] buccal, and frontal.