Opinions are made to be changed - or how is truth to be got at?

An opinion is a place to stand while you look, not something to defend for life. Holding one permanently means deciding in advance that no further information can reach you. Getting nearer to what is true requires being movable, and being movable means some of what you believe now will have to go.

Pick one view you hold firmly and ask what evidence would actually shift it. If nothing could, you are not holding an opinion, you are holding an attachment. Say so plainly, once, the next time you turn out to be wrong about something small.