A Posteriori Quotes

“That all our knowledge begins with experience there can be no doubt. For how should the faculty of knowledge be called into activity, if not by objects which affect our senses and which, on the one hand, produce representations by themselves or on the other, rouse the activity of our understanding to compare, connect, or separate them and thus to convert the raw material of our sensible impressions into knowledge of objects, which we call experience? With respect to time, therefore, no knowledge within us is antecedent to experience, but all knowledge begins with it.
But though all our knowledge begins with experience, is does not follow that it all arises from experience. For it is quite possible that even our empirical knowledge is a compound of that which we perceive through impressions, and of that which our own faculty of knowledge (incited by sense impressions) supplies from itself, a supplement which we do not distinguish from that raw material until long practice and rendered us capable of separating one from the other.
It is therefore a question which deserves at least closer investigation and cannot be disposed of at first sight: Whether there is any knowledge independent of all experience and even of all impressions of the senses? Such knowledge is called 'a priori' and is distinguished from empirical knowledge, which has its source 'a posteriori', that is, in experience...”
― Immanuel Kant, Critique of Pure Reason

“Eu já te amava a priori, eu ainda te amo a posteriori.”
― Filipe Russo, Caro Jovem Adulto

“The whole shtick of scientism revolves around sensory evidence. How many times must it be said that there is no such thing as self-explanatory sensory evidence? All evidence must be interpreted, and the interpretation is not a perceiving activity but a judging activity. The catastrophic error that worshipers of scientism (autistic sensing types) commit is that they privilege perceiving over judging. They believe that perception is the most important thing, and that judgment must be directed to the maximum degree possible at the perception, and minimize and indeed eliminate any reference to anything that has not been perceived. For worshipers of scientism, perception comes first, and judging is secondary, determined by perceiving. That is what empiricism is all about. It claims that all knowledge comes from experience, that there are no innate ideas, and it revolves around synthetic propositions and a posteriori knowledge. Rationalism, by total contrast, asserts that knowledge comes from logical, rational deduction and that innate ideas form the only secure basis for knowledge. It deals with analytic propositions and a priori knowledge.”
― Thomas Stark, Extra Scientiam Nulla Salus: How Science Undermines Reason

“Scientists believe they can trump any opponent by saying, “Where is your physical evidence?” That statement – their reflexive go-to statement – is the core of their fallacy, because it has already excluded all hidden variables, non-observables, and the whole noumenal inside of reality.”
― Thomas Stark, Inside Reality: The Inner View of Existence

“To select arbitrarily a set of first principles, and to make all our studies subordinate to them, is in effect to establish an intellectual dictatorship amd to kill the freedom of mind. It is true that it would give us orderliness, but it would be the orderliness of death.”
― John Buchan, The Interpreter's House - The Chancellor's Installation Address Delivered Before the University of Edinburgh, July 20th 1938