In discussing Chapter 2 of Man is the Measure we considered “good reasons” for believing that something is a valid piece of knowledge. (One of the reasons given was sensory perception.) Philosophers have considered the question of what “valid knowledge” is for more than two millennia. The debate has considered such perspectives as:
1) There is no such thing as valid knowledge. All knowledge is unsure. (This is known as radical skepticism or Pyrrhonism.)
2) Seeing is believing. We can only be sure of that which we observe. (This is called empiricism or logical positivism.)
3) Other than my own existence I can be sure of nothing. (Known as solipsism.)
You should not feel bound by any of these perspectives in considering the essay question below, but you may find them a good starting point for you to consider how you feel and think.
Essay question: Is sensory perception a good basis for knowledge?
In your essay you should include the following:
1) A thesis statement addressing the question above.
2) A clear definition of what you mean by knowledge. (Consider the things we read about in Chapter 2 regarding knowledge by acquaintance vs. description, knowing that and knowing how, etc.)
3) How sensory perception relates to at least three of the other “good reasons.” E.g. discuss whether sensory perception is more or less sure than, say, revelation and why.
4) Examples to back up your thesis from the various senses. You should include at least three senses and be explicit about what it is about them that supports your thesis and how. (CONSIDER ALL THOSE DEMOS, AND THE LAB!)
5) Examples from your readings in Chapter 2, 3 and 4 of the text, and the video we saw as a class, Secrets of the Mind.