Won't stop working, haven't done enough: Amitabh

Despite an experience of over 40 years in front of the camera and having clinched his fourth National Award Friday as best actor for playing a 13-year-old progeria patient in

"Paa", Big B asserts he will never say never.

“They ask me often now, why the need to work. They ask me when I will stop and lie back. They ask me 'have you not done enough?' And my answer is no, I have need to work and I will not stop and lie back. And no I have not done enough,” Amitabh posted on his blog.

“... And so without argument or comment I work. Work, because perennially it is the right thing to do,” he added.