I believe it's a paraphrasing of Warren Buffett's "invest in what you know". https://abcnews.go.com/Business/wireStory/latest-berkshire-hathaway-investors-worry

I believe it's a paraphrasing of Warren Buffett's "invest in what you know". https://abcnews.go.com/Business/wireStory/latest-berkshire-hathaway-investors-worry-future-62823835 https://abcnews.go.com/Business/wireStory/latest-berkshire-h...