Quote from ZZZzzzzzzz:
If you are truly applying a questioning mind, then you must know that you have to question the very foundations of your intellect, senses, and reasoning ability.
Unless you think that your intellect, senses, and reason are infinite and infallible (which would give you a god complex), you would have to reach the conclusion that human intellect, senses, and reason are severely limited...therefore could never be sufficient to have full faith in them to reveal the truth.
I have seen such people who truly did the work of deeply questioning their senses, intellect, and reasoning process...generally they are institutionalized or they walk like a corkscrew.
This is why the scientist uses evidence as his guide rather than faith. The human mind that uses emotion as its basis of truth can easily be fooled but the person that uses his mind to validate the evidence that is presented to him is not easily fooled.