@MC Kruger,
In reply to first post:
The student brings up a very interesting point, but it is easily countered (by any no-brain professor). Which brings me to the fact that this professor is a straw man. Maybe a small proportion of science professors are like this, but I doubt that this is a fair representation of the average science professor. In any case, this science professor should actually be a philosphy or theology professor if he is to put up a fair case for science (ironic, but true).
Anyway, all that is irrelevant. I haven't gone through all the previous posts, but no doubt someone has brought up the point that
science does not simply make conclusions based directly on what can be observed. That is a preposterous hypothesis (says the rhymnocerus). It takes but simple logic to deduce that the professor has a brain. The professor can walk, talk, breath, and argue badly, and this
can be observed directly by the senses, so is common sense that he has a brain. All functioning human beings have a brain. The science teacher is a functioning human being, as our senses clearly tell us. Ergo, the science teacher has a brain.
Of course, we can go trying to make the situation more complicated. Suppose, perhaps, that the science teacher could be a cyborg. Although no convincing cyborgs have been created yet, he
could still be a cyborg. We can then go on to say that
maybe that student is not a student, but instead an imposter, being payed by the professor to act as a student, and maybe, just
maybe, the professor cyborg is not cyborg professor, but actually an imposter cyborg professor designed to undermine faith in science, and this whole thing a set up. Maybe, maybe, maybe... ad infinitum.
To prevent this senseless speculation, science employs a very useful tool know as
Occam's Razor. To paraphrase is, "All other things being equal, the simplest solution is the best." One shouldn't try to complicate the situation beyond what is necessary to explain.
As for the evil = abscence of good proposition, I am sure someone else can answer that better than I can. I will have a look once this has been posted.