I'll give this a shot, and I'll probably change my mind in half an hour (see attachment). Brief explanation:
- Science is the smallest sphere, but provides probably the most certainty with what we can know about things.
- Outside that is reason, which can work with conclusions from science, but also from experiences and intuitions (a priori truth).
- Outside that is experience, which stands for what it basically says (a posteriori truth).
- Outside that is intuition, which to me is the same as axiomatic or self-evident truths. What Bertrand Russell called "instinctive beliefs".