The thing I most want to accomplish with this blog is to help you to think for yourself and to be a continuous learner. While I do not think that this requires that you get a degree in philosophy, I do believe that most of us lack a good education in philosophical thinking.
This was especially brought home to me when I read David Albert’s critique of Lawrence Krauss’ book A Universe From Nothing. Dr. Albert appropriately rips Krauss a new one for not doing his philosophical homework on the question of “why there is something rather than nothing,” and for thinking that a vacuum seething with virtual particles is the same as nothing. While it could well be that our universe came to be through the mechanisms that Krauss describes (quantum fluctuations in a vacuum), that does not answer the question of why there is something rather than nothing. For example, where did the laws of quantum mechanics come from? Does it make sense to say the physical laws have existed forever? Does it make sense to say the law of gravity existed a trillion years ago, long before our universe came to be? Does it make sense that there could be quantum fluctuations (variations with time), when many physicists believe that time did not exist prior to the Big Bang? Is it possible that the laws of physics have evolved with time?
To carry this thinking a little further, do you believe the number 2 has always existed, even before the universe was formed? That is, do you believe numbers exist independently of human brains and that we discovered numbers, or did we invent numbers? (It’s not a trick question: some philosophers and mathematicians believe one way, and some the other.)
Philosophical reasoning can help us answer questions of the order “does this make sense?” This makes such thinking all the more important in these days when there is so much publication of info that does not make sense (that is, when you really stop to think about it).
It can even help you choose between religions (or choose to not have a religion). For example, you might initially be biased against any religion that uses ancient “revealed truths” as its core, until you think about “is it even possible to know God unless God reveals some of himself to us?” (Imagine an ant trying to understand us through “meditation,” then imagine that there is even more distance between our brains and God than there is between our brains and the almost nonexistent neurological system of an ant.)
I am certainly not a philosopher, and therefore cannot tell you the best way to learn philosophy (or how much of it to learn). But I can say that Wikipedia and the Stanford Encyclopedia of Philosophy have been very helpful to me. I also have recently stumbled across this helpful page of Peter van Inwagen articles. There are also many, many philosophy course offerings at numerous online university websites and at iTunes U.