Because being one of the world's the richest just isn't enough. Buffett has no plans of slowing down now that he's finished radiation treatment for his non-life threatening prostate cancer, which he announced to newspaper executives on Friday.

Speaking to executives working for his recently purchased newspaper empire, Buffett made the announcement that he finished his last day of radiation treatment. And, at 82, Buffett plans to be around for the foreseeable future. "Buffett joked with executives about planning live to be the oldest man alive," reports the Omaha World-Herald. So much for any talk of a successor. Buffett first announced his cancer diagnosis in April. At the time, he said his condition was "not remotely life-threatening or even debilitating in any meaningful way." And by all accounts he hasn't missed a step. His investing strategy is still working. He didn't bite on Facebook's IPO, which proved to be a really good decision. As long as Buffett's mind is working in top notch condition, we're sure his body will catch up. Hopefully no complications from the cancer will arise and the ol' boy will be back to 110% soon.