Film legend Kirk Douglas has learned a lot in his 100 years of life and is passing that knowledge along to his grandson, Cameron Douglas.

In this week’s issue of Closer Weekly, Cameron reveals what he thinks the key to his grandfather’s success is. “He is a constant artist, always working on something,” Cameron, 38, shared with Closer. He adds, “I think that’s the key — feeding that hunger as an artist keeps him from being bored.”

kirk douglas cameron douglas getty images

Kirk with Cameron and his wife, Anne Buydens.

“He is sort of cruising [into age 101],” Cameron tells Closer. “I suspect he will be around for a long time!”

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