Brent Schlender said this quote

We can learn as much, if not more, from failure, from promising paths that turn into dead ends. The vision, understanding, patience, and wisdom that informed Steve's last decade were forged in the trials of these intervening years. The failures, stinging reversals, miscommunications, bad judgment calls, emphases on wrong values-the whole Pandora's box of immaturity-were necessary prerequisites to the clarity, moderation, reflection, and steadiness he would display in the later years.