We have to live today by what truth we can get today and be ready tomorrow to call it falsehood.
Truth is always unfolding. It's not an absolute.
Dogma is invariably wrong, as knowledge is always in a state of transition.
We say that the truth will make us free. Yes, but that truth is a thousand truths which grow and change.
In summoning even the wisest of physicians to our aid, it is probably that he is relying upon a scientific "truth", the error of which will become obvious in just a few years' time.
As time goes on, new and remoter aspects of truth are discovered which can seldom be fitted into creeds that are changeless.
