It comes from testable evidence that it works like planes, medicine, refrigeration, the internet you're using, etc.

@Rossy92 True, but where did the logic to depend on evidence come from? These are the questions I ask myself from time to time.

Science is just a way to think about and explore our world.

@AstroLou That's exactly right. We have been programmed to make sense of our world even before we reach a cognitive stage; maybe even when we're in the womb. Now, scientists are exploring the possibility that our memories may actually be stored in our DNA. Whether that's true or not, what we're seeing and proving at times is that there is significantly more to our universe than we ever thought possible. So is science as a result of intelligent design? And if so, who were or what was the architect, or engineer if one prefers that professional analogy? I also know that there is so much that we don't know or understand since we are still a relatively baby race. Lol

@josephr