Secondly- the third law.
This is the one that gets quoted most. I know it's popped up in Marvel, and probably DC, and probably half of the science fiction shows ever created.
Any Sufficiently Advanced Technology Is Indistinguishable From Magic.
There's a theory about a lot of old mythology and gods were created to explain the world. Thunder and Lightning are because a God is mad, not because electricity. (I should have chosen a different example because I can't remember the science of lightning right now. I now assign that to myself as homework.) The seasons changed because of magic, not getting closer/further from the sun. Magic.
Alternatively, show a video to someone from Ancient Rome and you'll definitely be called a magician. Predict the weather correctly and you'll be a magician or god (This counts right now still, at least for me). Use your phone to call someone. Cars. Printers. Depending on how much you know about things, these pieces of technology are simple, or they're magic.
I'm not saying there's no magic in the world, but there are a lot of things we call magic that I bet will be figured out in 50 years. They'll just find more magic then.
Now that I've got this posted, I'm going to do a magical thing called 'Sleep' that we still haven't explained but is essential for health even if we can't figure out how.
Sources:
My favorite place to look through these laws, which is a compilation from several places
Statistical Modelling--Columbia University-- Clarke's Laws
Twitter-- Physics in History-- Clarke's Three Laws
