What is the best way to change other people’s opinions?

What is the best way to change other people’s opinions? Very difficult to answer this.

Changing someone's mind (opinion) is not so easy. There are very few people who admit their mistakes by reasoning and logical argument. They change their opinions. But the majority of people belong to another group, man can stun them, shut their mouths, down their heads with reasoning, arguments pieces of evidence & prooves, but cannot change their opinion or make their mind unless they are willing to pay attention toward him. To do so, first, he must win their heart with love, affection, sympathy, kindness. Polite words & love can earn what a sword cant' that is winning the heart of your bitter opponent.
There is an Urdu proverb that says, "Love is the best conquerer, it wins every time, it conquers all"