Asked what he felt he could achieve at Celtic, Samaras said: "No limits. No-one has limits. it's how hard you push yourself.
"I know I feel good after that performance and after I scored the goals but I will watch the game on television and see my mistakes and try to correct those mistakes.
"Every week I feel better and better and that's why you see the difference between when I first came in to the team and now.
"I feel really good at the moment."