if we are sincere, then we can learn a great deal from others' missteps and shortfalls

It always seems to be easy to find the faults in others and to criticize others just for the sake of criticizing. However when it comes to ourselves, it is much harder to see our own shortcomings, and most importantly to recognize whole-heartedly that these defects may even have existed within us for a long time. In my opinion, if we are sincere, then we can learn a great deal from others' missteps and shortfalls, which may give us opportunities to reflect on and improve ourselves. But if we are not learning from others' mistakes, then simply criticizing others will not help others or ourselves. Thus, we should try to stay away from making unnecessary comments which are not healthy for anyone. After all, it is much more beneficial to correct our own mistakes so that we can be better people.