If you know something, then this knowledge is not an opinion, it should be obvious, but not all are the same of course. Some people’s ego are so large that they believe they know everything, no matter what subject or conversation is brought up. They try to take over by forcibly voicing their opinion. This creates division and conflict.
People who know, say nothing, people who do not know shout. When you have knowledge the only thing one should do is share it. Through uninformed opinions we create suffering. By sharing knowledge we create harmony and peace. There are no opinions in the end just truth. To know the truth, you know The Way.
Image by Hartwig HKD: https://www.flickr.com/photos/h-k-d/4113585692