It is easy to see that what makes pain and pleasure keen in us is the sharpness of our mind. The animals, who keep the mind on a leash, leave to their bodies their own feelings, free and natural and therefore almost exactly alike within each species, as we see by the uniformity of their movements. If we did not disturb within our members the jurisdiction which belongs to them in this matter, it is probable that we should be better off, and that nature has given them a just and measured temperance toward pleasure and toward pain. Indeed it cannot fail to be just, being equal and common in all.
...more
