"Learn to see in another's calamity the ills which you should avoid."
- Publilius Syrus
This seems like pretty good advice to me. Instead of having to learn from your own mistakes all the time, you can watch others and learn from theirs. You'd think that would be easy advice to take, but it must not be since many times we all seem to make the same mistakes lol. Maybe from pride or thinking we can do something better. It would just be much easier not to learn from someone else and not have to make that mistake.