Definition of Form.
Form is the garb of substance. It is the expressive symbol of a mysterious truth. It is the trademark of a hidden virtue. It is the actuality of the being. In a word, form is the plastic art of the Ideal.
We have to consider three sorts of form: The form assumed by the being at birth and which we will call constitutional form. Under the sway of custom forms undergo modifications: We will call these forms habitual forms. Then there are the fugitive forms, modifications of the constitutional form, which are produced under the sway of passion. These forms, which we will call accidental, passional or transitory, are fugitive as the things which give them birth.