But plants, though they have not powers of perception, yet, as they have life, certainly approach very nearly to those things which are endowed with sentient faculties. What then is so completely insensible as stony substance? yet even in this, there appears to be a desire of union. Thus the loadstone attracts iron to it, and holds it fast in its embrace, when so attracted. Indeed, the attraction of cohesion, as a law of love, takes place throughout all inanimate nature.