取得教训 meaning in English

draw lessons from

After he fails , he draws his lessons , corrects his ideas to make them correspond to the laws of the external world , and can thus turn failure into success ; this is what is meant by " failure is the mother of success " and " a fall into the pit , a gain in your wit "
人们经过失败之后，也就从失败取得教训，改正自己的思想使之适合于外界的规律性，人们就能变失败为胜利，所谓“失败者成功之母” ， “吃一堑长一智” ，就是这个道理。