Cobb:  What do you want ?
Saito: Inception . Is it possible ?
Arthur: Of course not .
Saito: If you can steal an idea , why ca n't you plant _ one _ there instead ?
Arthur: Okay , this is me , planting an idea in your mind . I say : do n't think about elephants . What are you thinking about ?
Saito: Elephants ?
Arthur: Right , but it 's not your idea . The dreamer can always remember the genesis of the idea . True inspiration is impossible to fake .
Cobb: No , it 's not .