ליטעראַטור פֿון בית שני אויף בראשית 27:38

[230] Esau’s words to his father seem to have a like meaning: “Hast thou one blessing, my father? bless me also, O my father” (Gen. 27:38). For different blessings should be set apart for different persons: perfect blessings for the perfect, half-way for the imperfect, just as we find with men’s bodies: for the healthy and the sick require different exercises and different diet, and in all other matters which affect their way of living the same treatment is impossible. The healthy need what agrees with them to prevent their falling sick at all, and the sick need what fits their condition to bring them round to better health.