HBS Working Knowledge has an excerpt from “Juice: The Creative Fuel that Drives World-Class Inventors” by Evan Schwartz:
Failure is the rule rather than the exception, and every failure contains information. One of the most misleading lessons imparted by those who have reached their goal is that the ones who win are the ones who persevere. Not always. If you keep trying without learning why you failed, you’ll probably fail again and again. Perseverance must be accompanied by the embrace of failure. Failure is what moves you forward. Listen to failure.
But there are different kinds of failure. Sometimes, failure tells you to give up and do something else entirely. Other times, it tells you to try a different approach, a new route to the top of the mountain. Or it may tell you to make a detour. Sometimes, it tells you that you need help. Sometimes, it doesn’t seem to tell you anything.
The HBSWK excerpt discusses Steve Wozniak and what he learnt.