Hi All,
And thank you very much for your thoughtful responses!
Special thanks, to you fledarmus, for your answer. I believe that the first paragraph fits Einsteins criteria, that when you truly understand your science, you are able to explain it to a child.
I read carefully all the responses, and already taken some notes.
I think I need to clarify more my intentions.
It's challenging, my wishes in this area are not standard and not trivial to describe precisely. Doing one more trial.
I don't intend to become a chemist. Don't intend to work in the industry as a chemist, and not in the chemical departments of universities.
On the positive side, I have three purposes:
1. I may continue to an academic career in cognitive science. This involves at least some, and sometimes much, work with the brain. I am willing to know enough chemistry to be able to understand and do this work.
2. As a personal interest, I am interested in the human body and health. This also needs some level of chemistry.
3. I am using all that I've learned in life, to understand the world. This applies to physics that I learned in high school, CS and math in the university, psychology at my free time.
Physics is actually a great example. High school mechanics alone, gave me so much understanding of the world that is hard to describe. And it's not that i am doing calculations - I doubt if I've done any mechanics calculations since finishing school. But! I am looking at the room that I am in, and everything has a meaning (in a scientific sense). I know that I am feeling the chair that I am seating on, because it applies to me exactly the same force that I apply to it. And this force is proportional to my weight. I know that it is more pleasant to sit on the chair than on the floor, because the heat runs from my body into the chair slowlier than into the floor. Also, the padding on the chair, prevents all my weight to press on few points with small area, thus creating strong pressure. And it is the very same reason why it's easier to cut an apple with a knife, than with my hand.
Now, for the first two items, I believe, and actually sure, that one does not have to be a chemist. Instead one needs to know "the basics" (in some sense of basics that I am still trying to figure out), and then get familiar with specifics that are relevant to the narrow topic that he is dealing with.
Now, I know that I can just grab some book giving the minimum chemistry necessary for biologists, and that will be it.
But I got a problem here. I always want to understand things.
And if I am investing time into learning basics of an important science that I have never touched, I want to do it in a meaningful way. I want insights, principles. I want to read something and figure out that this is important, and understand why. And the other one is much more local in context. I want to understand that this is actually derived from that, or maybe parallel to that other thing in a neighboring area.
As another example, I would not like to dive into organic chemistry, which sounds like my goal, without having a fair understanding of general chemistry.
As of details, I for example mean that at the first stage, I don't need to remember, or even cover once, the characteristics of many specific materials. Instead, I want to know which characteristics exist. How this characteristics being figured out / measured. How materials are classified. What are some implications of a certain characteristic. For each of those, which maybe we can call principles, I would like to see a few specific examples, but with the intention to understand the principle and not for the sake of this information itself. For example, I don't care at which temperature gold turns into liquid or even more common and basic pieces of information. But I do want to know, that the state depends on temperature, that there are critical temperatures for this transitions that change form material to material, and are also dependent on pressure (or so I think). I would also like to understand, what happens on the micro level, atoms, molecules or whatever, that makes the differences between states.
This
http://en.wikipedia.org/wiki/Chemistry#Basic_concepts looks to me like an excellent summary of Chemistry principles, and shows the difference between principles and details. (But of course, way way too short, only titles).
Hmm... I am thinking that maybe a high school book is a good place to begin.
All this is not trivial. I am looking at the way I was taught almost everything in life, and it was usually far from satisfactory. Exam oriented, rarely deep. Having a perspective of several topics that I learned, and having a significant teaching experience, I know that good and deep representation of material *is* possible. It is not common, but I do see those awesome textbooks from time to time, that truly understand a mater and truly know how to build it for freshmen from scratch.
I am going to learn something on my own this time, so I may have an opportunity to do it better. On the other hand I don't intend to invest the amount of time that people invest in a BA (or anything close), so, trying to be focused and peek the right materials.
And hoping to get here the help for making some right choices