You cannot hope to achieve peace by correcting each and every person in this world. In the same time, you cannot remove the world of stones and thorns so that the pathway maybe smooth. To feel comfortable walking on uneven ground, we should try wearing a pairs of shoes instead. Likewise, we should learn to guard our senses to have peace of mind since we cannot succeed in removing disturbing object from the world.
There are many ways to correct a person if he/she is wrong. By criticising, blaming, and shouting at him/her publicly, you will not be able to correct him/her but you only make him/her more adamant in his/her views.
Speak to him/her kindly in pointing his/her mistakes, he/she is more likely is listen to you, and some day he/she will thank you for your guidance or kindness.
Whenever you express your views regarding certain matters, avoid harsh words spoken with anger so as not to hurt the feeling of others. Always express your views gently or politely. On the other hand, you should not lose your temper or show your sulky face when your faults are pointed out. You may think that by losing your temper, showing an ugly face, an shouting at others, you can intimidate others in order that they may overlook your shortcomings. This is the wrong attitude to adopt.Rudeness, yelling, anger and swearing are a weak man's imitation of strength.