sobie a muzom

Etymology
lit. 'for myself and [the] Muses,' from the poem Muza (The Muse) by :
 * Sobie śpiewam a Muzom: bo kto jest na ziemi Coby serce ucieszyć chciał pieśniami memi?
 * I sing for myself and the Muses: for who is there on earth Who would like to please their heart with my songs?

The phrase is of ancient origin and is mentioned by (as ) in his work , said to have been spoken by  to his disciple whose performance, despite being good, was received coldly by the audience.

Adverb

 * 1)  for oneself, for one's own pleasure