NEW DELHI (TIP): Reacting to the remarks made by DMK chief M Karunanidhi that he is a potential prime ministerial candidate, finance minister P Chidambaram on Monday said he knows his limitations. “If you are expecting a light-hearted comment,” Chidambaram told reporters, then “I tell you this: I know that some of you think I am foolish. But I am not so foolish as you think.” “I know my limitations and I live and conduct myself according to my limitations,” Chidambaram said here when asked to respond to the remarks of the DMK chief who had supported actor Kamal Hassan’s suggestion that the FM was a potential PM candidate. “I don’t know whether I should take your question very seriously. But let me give you a very serious answer. I know my limitations,” he told reporters. On Saturday while releasing a book, Karunanidhi had endorsed actor Kamal Hassan’s view on the FM becoming the PM.