Warren Buffett shed light on his relationship with Bill Gates and his decision to end his annual donations to the Gates Foundation, in a rare interview with CNBC’s Becky Quick on Wednesday.

The famed investor and Berkshire Hathaway chairman said he had “read a lot” about Gates’ ties to Jeffrey Epstein, and while it was an “unpleasant” situation, everyone makes mistakes when judging people.

“I didn’t find anything there that was beyond what I could imagine doing,” Buffett said of the transcript of Gates’ voluntary testimony before the House Oversight Committee last month as part of its investigation into Epstein.

Gates testified that he met Epstein through trusted associates, and that the pair met several times between 2011 and 2014 in connection with philanthropic fundraising.

The Microsoft co-founder said he never witnessed any criminal conduct by Epstein, never visited his famous island and did not seek a personal relationship with him.

Gates said partnering with Epstein was a “serious error in judgment” driven by his hopes of raising funds for his global health work.

“Nobody makes a living in the business of picking people,” Buffett said.

Buffett, who announced this week that he will donate a total of $6 billion in Berkshire stock to four of his family’s foundations, told Quick why he wasn’t giving the bulk of his annual donation to the Gates Foundation as usual.

The legendary stock picker, who will turn 96 in August, said he has already given the Gates Foundation a “huge amount of money,” that he has a lot of financial power, that Gates himself has ample resources and that Buffett now entrusts his wealth to his children.

Buffett said in a news release announcing the donations on Tuesday that he hopes his three children will be able to cash out all of their Berkshire shares, which account for more than 99% of his wealth, by the end of 2034.

“I’ve really done the same thing as Bill, in a sense,” Buffett said, referring to Gates’ words last year that he would “give away virtually all of my wealth through the Gates Foundation over the next 20 years.”

The Gates Foundation said in a statement that it is “grateful” to Buffett for his decades of support and more than $47 billion in donations, and that it remains in a “position of financial strength to advance our work through 2045, supported by Bill’s $200 billion commitment.”

The former Berkshire CEO, who made way for Greg Abel earlier this year after six decades in the role, said Gates had visited him in his hometown of Omaha a few weeks ago and that the two had spent about three hours talking.

Buffett, who met Gates for the first time on the Fourth of July weekend in 1991, said they have had “an enormous number of good times together since we met” and that they have shared a “wonderful friendship.”

After the interview aired, Quick revealed that Buffett broke his leg a few weeks ago and underwent surgery, but is recovering well and can walk with some help.