Who is the clever boulder pusher?

The "clever boulder pusher" refers to the character of Sisyphus from Greek mythology. He is known for being condemned to push a boulder up a hill, only for it to roll back down each time he reaches the top. This punishment symbolizes the futility of his efforts, yet Sisyphus is often interpreted as embodying resilience and cleverness in the face of endless struggle. The phrase can also be a metaphor for persistent effort despite seemingly insurmountable challenges.