Brown made his comments Sunday during an appearance on NBC's Meet the Press. He was asked whether legalizing marijuana was a good or bad idea for California.
Brown said the state already has medical marijuana which gets very close to what Colorado and Washington have.
"I'd really like those two states to show us how it's going to work. The problem with anything, a certain amount is okay but there is a tendency to go to extremes. And all of a sudden if there's advertising and legitimacy, how many people can get stoned and still have a great state or a great nation. The world's a pretty dangerous, very competitive. I think we need to stay alert."
In a wide-ranging interview Brown also discussed California's drought problems, climate change and his future political career.
A federal judge has ruled California’s death penalty is unconstitutional.
The primary election recount for California State Controller is prompting legislation to reform the state’s recount procedures.
The drought could damage California’s economy to the tune of $2.2 billion this year, according to a new study.
A delegation of California lawmakers, including Senate President Darrell Steinberg, is traveling through Central America this week meeting with dignitaries from the region.
The Internet has an increasing influence on society and now it wants more influence on legislation.