ancient wisdom?

Mankind used to believe that all there was to know was held by past masters and that knowledge were either; still with some, lost, or possibly even held occult in secret places out of our reach perhaps even to be used against us.

Now with each step we make we see that old ideas crumble. It is what we know now that is the highest knowledge. With time this too though will become dust.

The only immovable knowledge is still: That knowledge is limited.

Maybe then aside from scientific breakthroughs, that immovable knowledge was held by all of our ancestors.