That leaves internal necessity or fate to be more fully accounted for, which won't be easy. (abcrit.org)
For some artists, this is a perfectly natural way of painting borne out of internal necessity; for others, it is a consciously adopted formal strategy that underpins the content of their work. (talleydunn.com)
He believed firmly in retribution, but regarded this as brought about by an internal necessity or inevitable degeneration of the personality which brings its own punishment and renders a person incapable of attaining the life of heaven. (religion-online.org)