This is the blossom of learning. It is for those who are constantly unable to master their lessons, whether in a literal or metaphorical sense; for those who always make the same type of mistakes to the extent they look outright stupid. They don’t draw lessons from their own mistakes let alone from others’. In their positive state, these people have a sharp watchfulness, deep perspicacity and wisdom.
For those who do not take full advantage of observation and experience, and who take a longer time than others to learn the lessons of daily life. Whereas one experience would be enough for some, such people find it necessary to have more, sometimes several, before the lesson is learnt. Therefore, to their regret, they find themselves having to make the same error on different occasions when once would have been enough, or observation of others could have spared them even that one fault.
"The Twelve Healers and Other Remedies"