Which preposition to use with euphorion

in Occurrences 1%

(HELENA, FAUST, EUPHORION in the costume indicated above) EUPHORION Songs of childhood hear ye ringing, Your own mirth it seems; on me Gazing, thus in measure springing, Leap your parent-hearts with glee.

to Occurrences 1%

No man, I imagine, would object more strongly than Euphorion to communistic principles in relation to material property, but with regard to property in ideas he entertains such principles willingly, and is disposed to treat the distinction between Mine and Thine in original authorship as egoistic, narrowing, and low.

Which preposition to use with  euphorion