“The test of a first-rate intelligence is the ability to hold two opposed ideas in mind at the same time and still retain the ability to function.” - F. Scott Fitzgerald.
Yesterday, I wrote briefly on why you should always be asking "is that true?" and find this quote from F. Scott Fitzgerald to be especially fitting.
It seems everything in today's world is either THIS or THAT, which leaves opportunity to learn from the middle.
If you find yourself 100% certain, it may be time to consider the other side.