relationship between memory and knowledge

When knowledge comes, memory comes too, little by little … Knowledge and memory are one and the same thing.
-Gustav Meyrink

Most of us often lament that our memory is failing us, maybe it is knowledge that is failing us; maybe what we need to do is commit and supplement knowledge and the memory aids the retention.
And when we fail to retain the memory it could be our lack in ability to add to that knowledge that dissipates the memory.