I simply mean that some time between 300 BC and 2016 AD somebody figured out that the human mind is great at explaining pretty much anything, so between bouts of solemn cogitation we might want to check out what's really going on in the real world just to make sure that we're on the right track.

Logic is obviously necessary, but as today we know that our universe is not a logical tautology, just one of many possible-Kripke-worlds, different models for the logic can lead to different results, so opening the window from time to time to see which of the possible worlds we actually live in is a good idea.