"I can only teach you but you won't ever be able to imitate it." The old man told him, after Ceaser's continuous pestering about teaching him the final form of the Sword Arts.
Ceaser only had heard that there was a final form, but even though he asked continuously to be taught, the old man refused.
Until now, Ceaser has gone through many trials and has suffered a lot to reach this stage. He learned everything thrown at him and never complained(mostly).
So now, he has the right to learn about the final form as well, no?
"What exactly is the last form that you are so reluctant about it ?" Ceaser asked as he remained seated on the porch and watched the old man sharpen his blade using a stone.
The old man can go on about shining his blade for hours without taking a break.
"It's not a human can achieve. And it is not something that should be directed toward a human either." The old man responded coldly.