The Motion of Motion

If motion being present it is necessary something should be moved. If the magnitude E B C were composed from the indivisibles E B C the motion also D E F with which O is moved through the interval A B C will have each of its parts in indivisible. Just as if anyone walks to thebes it is impossible that he should at the same time walk to thebes and have walked to thebes. Hence there will be something which proceeded though it has never at any time proceeded for it has proceeded through this not proceeding through it.