The most efficient means of learning is to learn from others’ mistakes.
This is easier said than done. It is easy to hear or read about someone’s mistakes. To truly learn from them, we have to internalize their pain and think about how we might apply what they learnt when we’re in a similar situation.
The trick is in empathizing so strongly with their pain that we reflect on it as if it were ours.
Then, when the situation presents itself, we stand a chance of changing our behavior and, thus, learning.