Thomas Aquinas

“ After sin, if man had ate of the tree of life, he would not thereby have recovered immortality, but by means of that beneficial food he might have prolonged his life. Hence in the words "And live for ever," "for ever" signifies "for a long time." For it was not expedient for man to remain longer in the unhappiness of this life. ”

“ The subjection of the woman to her husband is to be understood as inflicted in punishment of the woman, not as to his headship (since even before sin the man was the "head" and governor "of the woman") , but as to her having now to obey her husband's will even against her own.
If man had not sinned, the earth would have brought forth thorns and thistles to be the food of animals, but not to punish man, because their growth would bring no labor or punishment for the tiller of the soil, as Augustine says (Gen. ad lit. iii, 18) . ”

“ Although the place of the earthly paradise avails not man for his use, it avails him for a lesson; because he knows himself deprived of that place on account of sin, and because by the things that have a bodily existence in that paradise, he is instructed in things pertaining to the heavenly paradise, the way to which is prepared for man by Christ. ”

“ Further, death and other bodily defects are similarly found in man as well as in other animals, according to Eccles. 3:19, "The death of man and of beasts is one, and the condition of them both equal." But in dumb animals death is not a punishment of sin. ”

“ Likewise whoever tills the soil must needs eat his bread in the sweat of his brow: while those who do not themselves work on the land, are busied with other labors, for "man is born to labor" (Job 5:7) : and thus they eat the bread for which others have labored in the sweat of their brow. ”

“ Further, the punishment inflicted for a sin should outweigh in evil the gain realized through the sin: else the punishment would not deter one from sinning. Now through sin our first parents gained in this, that their eyes were opened, according to Gn. ”