There are abstract objects such as numbers. There are objective moral facts. The mind is distinct from the body. The workings of the mind are not in any sense mechanical. We could be systematically deceived, or hallucinating, in all our 'experiences'.
Every event has a cause.
No statement is immune to revision in the light of experience. Some statements are true solely by virtue of their meanings. The facts of consciousness are beyond the reach of science. There is no single correct system of logic. There is no single correct scientific method.