This morning in his spiritual discourse Poojyashree Sudhanshuji Maharaaj mentioned two examples to explain the difference between knowledge and experience.
It takes just a minute to let someone know how to drive a car. But unless this knowledge is put into practice, the former has no value.
Once there was a very famous heart surgeon in Mumbai. He used to perform at least 2 to 3 surgeries per day. One day he himself died of heart failure. He had the habit of drinking and smoking. Thus the knowledge that drinking and smoking are bad for health was useless because he didn't put it in practice. (This guy reminds me of a former neighbour with whom my cordiality was always at a certain 'minimum distance' due to his drinking and smoking habits).