Wisdom is the sum of all you learned in school and haven’t forgotten to this day.

Education is what remains after one has forgotten what one has learned in school. (Albert Einstein)

All of our fears are treasure troves of self-knowledge ready to be explored if you dare to make the first step.
Fear is a question. What are you afraid of and why? Our fears are a treasure house of self-knowledge if we explore them. (Marilyn French)