The first and wisest of them all professed to know this only, that he nothing knew

He knew / Himself to sing, and build the lofty rhyme.

Him first, him last, him midst, and without end.

When I first got it, it meant nothing to me because I knew nothing about the mines. But when I looked over it and saw there had been recommendations made.

Well didst thou speak, Athena's wisest son!/ All that we know is, nothing can be known.

The Constitution did not even go into effect when Washington was inaugurated first President. The wisest men knew that it was only a figment of the imagination then.