Can't find the part where everything except bitoin is a security, I think that was said later in public.. But these are quotes from the lecture. Interestingly, lecture 18 is not available (it wasn't either when all of this was published), but it's right in the securities/regulations part. I'd highly recommend anyone to watch all of the lectures, because they're highly informational. Gary is a super smart guy. Many people think that regulators don't understand crypto etc, but I think Gary knows a lot more than many many people.

"Blockchain isn't the-- we don't have regulation because of blockchain, and we don't necessarily need a new set of regulations." https://youtu.be/l0vD_FBWk0g?t=1976

Discussion about SAFT / utility etc: https://youtu.be/iWpQpPbo7rM?t=994

XRP is a security, but "what I believe.. is just that, it's a believe". https://youtu.be/7EXcHqLg7BI?t=2767

Bitcoin is a commodity https://youtu.be/KHBi3n0hUSU?t=3591

"So we already know in the US and in many other jurisdictions that 3/4 of the market are not ICOs or not what would be called securities, even in the US, Canada, and Taiwan, the three jurisdictions that follow something similar to the Howey Test that we've talked about. 3/4 of the market is non-securities. It's just a commodity, a cash crypto. So you'll hear debates about initial coin offerings. And what's a security? And what's not a security? Relevant-- relevant and important debate, but for 3/4 of the market, it's not particularly relevant as a legal matter, as a regulatory matter. "

https://youtu.be/KHBi3n0hUSU?t=1591