Convert difficulties into opportunities, for difficulties are divine surgeries to make you better. – Author unknown

In our nature, however, there is a provision, alike marvelous and merciful, that the sufferer should never know the intensity of what he endures by its present torture, but chiefly by the pang that rankles after it. – Nathaniel Hawthorne, The Scarlet Letter

Behold, I have refined thee, but not with silver; I have chosen thee in the furnace of affliction. Isaiah 48:10 – Bible