Immature poets imitate; mature poets steal; bad poets deface what they take, and good poets make it into something better, or at least something different. The good poet welds his theft into a whole feeling which is unique, utterly different for that which it was torn; the bad poet throws it into something which has no cohesion.

T. S. Eliot

https://en.wikipedia.org/wiki/T._S._Eliot