I like what you have to say except the part about system of thoughts. We need a system of thought or theory based upon which we can do our study and judge things. When we build something we think of the qualitites, requirements and the overall architecture for the project.
Religion teaches us through trust and humility that we do not know everything and that all our logic is useful but limited. That things can be true even if all our logic cannot comprehend it because of our lack of experience and our inherent ability to be fallacious.
Philosophy and science teaches critical thinking, can strengthen religion and teaches us the limit of trust and following authority.
The right religion recognizes the limits of trust and the right philosophy recognizes the limit of reasoning and mankind has got to know it's limitations.
I agree with you as the Taoist saying goes, "Know thyself and hence you will know others"
Cause deep inside we are not all that different, it is just that man psychologically pays attention more to differences than similarities, and hence he assumes that he is an individual. But how can we know ourselves when all we do is perceive: whether ourselves or others, perceptions which can all be an illusion and fallacious?