If you ask what is the strangest thing in the world to me?

I will answer like this

Look every single human being has his or her personal opinion.And this is not a problem.But there should be and must be a change in their opinion.And otherwise it is not their personal opinion.If it is a personal opinion it must undergo through certain changes.

But the problem is that most of the people can't accept this changing reality(though many of them verbally accept).And they stick to their temporal conception of unchanging reality.And fights with one another to protest their temporal changeless reality but ironically they themselves cannot uphold their changeless personal opinion too long.How strange!