Where else can the idea of learning through suffering be found?

Hebrews 5:8 (ESV)

8 Although he was a son, he learned obedience through what he suffered.

Learning through harm is a general wisdom and also a biblical idea (Psalm 119:71; Job 33:19; Job 36:15; Proverbs 7:2). A person gains a wealth of wisdom in life’s school of suffering.1