The 42-year-old actress said that since being expelled from private school when she was younger, she has become very thorny, reported Contactmusic.
"I've got a lot of thorns. I'm very thorny. I have countless flaws - have you got a year? Hopefully, as one gets older, one learns to deal with the flaws that really affect other people.
"I still think it's important to question authority. I don't want to smash things up just for the sake of it. But I like to question people who say they're in charge," said Weisz, who is married to Bond star Daniel Craig.
The actress has a six-year-old son, Henry, from a previous relationship with director Darren Aronofsky.
While she loves the youngster, Weisz said that her relationship with him is not without conflict and doesn't plan on having any more children.
"Like any job, there are days when you're just pulling your hair out. The same as anyone who wants to be with their kid or their husband. I'm pretty content. I'm not planning on having more, but never say never," she added.
