In short, since “everyone is entitled to their own opinion”, and since “everyone has their own beliefs”, the student can then set their own opinions in opposition to the philosopher claiming “while Leibniz believes x, I believe y, so I don’t agree with Leibniz.” Here their own views are protected behind an impenetrable fortress and need never be challenged or subjected to any sort of critical scrutiny. Given that one opinion is as good as another, the student can continue to cleave comfortably to their prior beliefs without entering into any sort of becoming. Everything remains the same. Not coincidentally, I find that those students who most vigorously use the language of “opinion”, “belief”, “feeling”, “perspective”, or “perception”, are also the ones who tend to do the worst in my class. The reason for this is that they inevitably end up summarizing the “opinions” of the philosopher– “Spinoza believed that God and the world are one and the same” –without analyzing the arguments by which the philosopher arrives at his position. Everything thus remains at the superficial level of an inventory of the philosopher’s “opinions”, without any examination of just what line of reasoning leads the philosopher to such a conclusion.
Read on
So in my zeal, I strive to eradicate these words from the vocabulary of my students– and I hope whatever other educators happen to read this post will do so as well –instead advising them to use words like “claim”, “thesis”, “position”, “assertion”, “argument”, etc. The point here is not that philosophers are always right or that they can never be mistaken. Rather, the idea behind this foreclosure of words like “opinion” and “perception” and their replacement by terms like “argument” and “claim”, is to draw student attention to supporting reasons for claims or how thinkers arrive at claims. In other words, one does not argue against a position by setting another position beside it like two books on a bookcase, but instead strives to demonstrate the presence of contradictions, false premises, invalid or weak arguments, etc.
In working through Lucretius, Leibniz, and Spinoza this semester I was astonished to discover that my students did not know what an argument is, nor what explanations and theories are. How strange courses in the humanities must sound to their ears. For them an argument is a disagreement between two people, a dispute, rather than a set of reasons in support of a claim or a conclusion. What must they think when a professor asks them to examine a philosopher’s argument? Likewise, a theory is an unproven guess or hunch, rather than an explanation (a “why?” or “how?”) for some phenomenon or other. Upon hearing the word “theory”, they must immediately assume that something unproven and undemonstrated is being referred to. As a consequence, it seems to me that the first week or two of my intro classes must be devoted to the three following topics prior to jumping into the material:
2) Arguments and Conclusions: As I remarked, my students seem to have little conception of just what an argument is, so it seems appropriate to explain the relationship between premises and conclusions, as well as the difference between deductive arguments and inductive arguments. This latter distinction is especially important in philosophy classes as it is often assumed that the only way to “prove” a conclusion is inductively through observations of the world. A number of philosophical issues and positions can’t be understood at all without a clear understanding of the difference between induction and deduction.
3) Truths of Reason and Truths of Experience: I find that clearly making this distinction is one of the most challenging things confronting those that teach philosophy. It is impossible to understand Plato, Descartes, Spinoza, etc., if it is assumed that the only truths are truths of experience. In the absence of this distinction it will be assumed that the only way to prove something is through direct observation. This can lead to extreme skepticism when a bright student recognizes that many events are remote from us in time and space and therefore cannot be observed (i.e., they refuse to grant that we can make inferences based on the regular structure of the world). Consequently, if any form of rationalism is to be taught in a class it is absolutely vital that this distinction be introduced early– preferably using mathematics as a model or example –so that the nature of rationalist arguments can be understood. However, this distinction is also relevant to non-rationalistic forms of inference. Thus, for example, a student might protest that Lucretius cannot “prove” that the atoms exist because we cannot directly observe the existence of these atoms. What this ignores is our ability to make inferences from facts– as in the case of water changing color given above –allowing us to legitimately conclude the existence of entities that are not directly observed. It will be noted that this style is a favorite of evolution deniers who argue from the premise that we can’t directly observe what took place in such remote history, therefore warranting the conclusion that evolution is “just a theory” that cannot be “proven”.
The introduction of these distinctions at the beginning of the semester is thus my resolution for the Spring semester. In many respects, these simple distinctions are some of the most valuable things that can be taken from an introductory philosophy course. Above all they encourage students not simply to evaluate claims abstractly, but to look closely at texts, determining the supporting reasons and explanations the philosopher himself provides.