Origen

“ Moreover, even if the ants set apart in a place by themselves those grains which sprout forth, that they may not swell into bud, but may continue throughout the year as their food, this is not to be deemed as evidence of the existence of reason among ants, but as the work of the universal mother, Nature, which adorned even irrational animals, so that even the most insignificant is not omitted, but bears traces of the reason implanted in it by nature. ”

“ And would not the ants, as being irrational creature, be greatly puffed up, and think highly of themselves, because their works were compared to those of men? while men, on the other hand, who by means of their reason are enabled to hear how their philanthropy [3] towards others is contemned, would be injured, so far as could be effected by Celsus and his arguments: for he does not perceive that, while he wishes to turn away from Christianity those who read his treatise, he turns away also the sympathy of those who are not Christians from those who bear the heaviest burdens (of life) . ”

“ Unless, indeed, by these assertions Celsus means obscurely to intimate (for in many instances he would like to adopt Platonic ideas) that all souls are of the same species, and that there is no difference between that of a man and those of ants and bees, which is the act of one who would bring down the soul from the vault of heaven, and cause it to enter not only a human body, but that of an animal. Christians, however, will not yield their assent to such opinions: for they have been instructed before now that the human soul was created in the image of God ”