A posteriori

logic: the use of critical thinking, particularly binary yes/no thinking and inductive/deductive reasoning, as a means of testing ideas and debate--logos.

epistemology: the study of how we know things with any certainty and what limitations there may be to our ability to think, perceive, and understand

ontology: the study of being and what constitutes objective and subjective existence, and what it means to exist

ethical forensics: the study of what is right and wrong, why it is right or wrong, and whether a common basis for of absolute morality can be found outside the individual mind in the laws of nature or the community