Our philosophy books include
Ante Oculos, Epicurus And The Evidence-Based Life by Cassius Amicus; here's an excerpt from this free ebook: 'In order to arrive at truth in any new matter we must always start with those things for which we already have a clear view. We must then reason by analogy, by proportion, and by similar methods to compare the evidence about those things that are uncertain with those things that we do know to be true. Starting with those things that are directly before our eyes, we then apply that knowledge to those things which are distant or obscure, and in this way we expand the range of our clear view.In those situations where we do not have a clear view of a matter, we must accept as possible any alternative which can be squared with the evidence that we do know to be true.'