Do you mean all of the teachings of Jesus? Or a subset of them (that you refer to as “simple”? It’s odd to me that you don’t want to profess belief. Yet Jesus teaches:
“I am the resurrection and the life. Whoever believes in me, though he die, yet shall he live, and everyone who lives and believes in me shall never die."
John 11:25-26
It seems that Jesus wants us to believe in Him. Following Jesus means believing in Him.
- Throughout middle and high school, I was pretty bad at biology and chemistry - in fact, I stopped taking any classes in that after 10th grade. Physics was the only science that I was any good at. Even then, in high school I was quite an average physics student.
- I don’t think that only work which directly and immediately benefits humanity (or the church) glorifies God. We serve God according to our gifts and calling. You can serve God by being a cancer researcher, a medical missionary, a social worker, a mechanic, a pure mathematician, or even if you are disabled and bedridden and can’t do any sort of economically productive work.