There are many who erroneously maintain that in order to learn it is necessary to stumble... I think this is a mistake, and a big one. We can learn a lot from the experiences of others, the bad thing is if we refuse to consider them, thinking that we can do better and that we can not do the same.
Many times God puts in our way people that with a few simple words or an action, can illuminate our way (the way in which God works can come in different ways), but our stubbornness prevents us from seeing those signs, and it is then, when the blow comes, and we wonder why, pride can be a great enemy that is hidden within many of us.
It is true that it is said that no one learns from other people's advice, but what really happens is that if we do not have an open heart to receive advice, that advice will go nowhere.
Pride is a capital sin because we can regret it for a long time.