Is Science The Only Way Of Knowing?

Many theists claim that science** is only one way of knowing. Is this true?

As background, at least a rudimentary use of the scientific method is used in most everyday activities. This blog gives an example of how this is so:

Here's a simple depiction of the scientific method. It's a looping, circular process of Theory - Prediction - Experiment - Observation.
I try to turn on my TV. I'm met with a blank screen. What to do? I come up with some theories. Set got unplugged. I'm pressing the wrong button on the remote control. I'm holding the wrong remote. TV is broken. Power is off.
If any of these theories is correct, my prediction is that dealing with the problem will cause the TV to turn on. So I start experimenting. And observe what happens.
What I don't do is sit on the couch and say to myself, "It's God's will. Nothing I can do about it. Except pray."

There is objective truth, which science attempts to find. This is external from the individual and may be seen by others

There is subjective truth, which is personal experience from consciousness. It is real to the individual, but not to people outside of the individual. Science has no role in subjective truth.  However, science says "If you cannot show me the evidence that supports a theory, then I can't accept it as objective truth".  Subjective truth does not require evidence. If I say "I like apples better that oranges", you are going to accept it as my personal preference. But, if I say "I like apples better that oranges and you should eat more apples," then an argument may ensue.

If a theist only states a belief without evidence, then an outsider can easily accept it as a personal preference. However, if he/she wants others to accept their metaphysical claim without evidence, such is not justified.
While metaphysical truth may be found within personal experience, without external-to-the person evidence, acceptance by others is not justified. Only objective truth is meaningful outside of the individual and science is the best way of determining it.
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Note**: This blogger construes science broadly in this context—as “empirical investigation combined with reason." Thus, this definition would include the social sciences and humanities that use empirical methods.