Everything we produce is a reworking of existing creations, our lives, and the lives of others.
If I have seen further it is by standing on the shoulders of giants.
-Isaac Newton (17th c)
We are like dwarfs on the shoulders of giants
-Bernard of Chartes (12th c)
Nobody starts their career off being original.
Emulation and copying is needed for us to build a foundation of knowledge and understanding.