There once was this wise man who said the truth so plainly.
Ask and it will be given to you; seek and you will find; knock and the door will be opened to you.
To me it is, above all else, a story about the inherent bug of bias in the human mind.
What I find interesting about the two thousand year old wisdom as a software tester is this. That dude from Nazareth pointed out with plain words to the dysfunction of the mind. One of them is called the confirmation bias for example.
Search, and you shall find.
Yet, we consistently end up being fooled by our minds. So what could we do about it?
The greatest software testing professionals have one quality over majority of people. They posses and develop the skill to question and challenge the assumptions always.
But in order to do that, the real guru needs something that I like to call awareness. Awareness is a skill that we can direct and the first step is becoming aware of our own thoughts as they flow in and out of the consciousness.
So I suggest this one simple exercise first… and last.
Stop. Do it now and listen to your inner dialog for one moment. Then move on again.