back to the future 是一個著名的電影系列，它包含了多個相關的電影和名言。以下是其中的一些名言：
1. "I'm not a time traveler, I'm a time remover." - Doc Brown
2. "There's no time like the future." - Marty McFly
3. "If you don't make your own future, someone else will do it for you." - Doc Brown
4. "You can't change the past, but you can change the future." - Marty McFly
5. "I don't know if I can do this, Doc. But I'm not scared of falling. I'm scared of hitting the ground." - Marty McFly
這些名言都表達了時間旅行、未來、改變過去和面對挑戰等主題。如果你需要其他相關的名言，請告訴我。