They pointed out, too, the considerations which might contribute to support his constancy under the agonies of pain and even of torture, in sickness, in sorrow for the loss of children, for the death of friends and relations, etc. The few fragments which have come down to us of what the ancient philosophers had written upon these subjects, form, perhaps, one of the most instructive, as well as one of the most interesting remains of antiquity. The spirit and manhood of their doctrines make a wonderful contrast with the desponding, plaintive, and whining tone of some modern systems.