Oddly, if you Google it, the first results are not the foundation. Here's a direct link to the foundation in case others are curious: https://longevity.foundation/

But, I think "All evils are caused by insufficient knowledge," and death is one of those evils. Great chapter about "Optimism" that ends with a comment on immortality from The Beginning of Infinity: https://publicism.info/science/infinity/10.html