The charm of our studies, the enchantment of science, is that, everywhere and always, we can give the justification of our principles and the proof o… - Mordechai Ben-Ari

We can define a fact as an observation backed up by such a preponderance of evidence that no useful purpose would be served by doubting it.

A scientific theory is a concise and coherent set of concepts, claims, and laws (frequently expressed mathematically) that can be used to precisely and accurately explain and predict natural phenomena.
A theory should include a mechanism that explains how its concepts, claims, and laws arise from lower-level theories.

It is important to distinguish between the scientific concept of law as a generalization, and the social concept of law which is prescriptive and normative. A desire for tolerance in respecting the laws of different social systems must not lead us into the mistake of attributing volition to the entities of science or relativism to scientific laws.