Ray Dalio: 当然，Youtube 视频已经是免费的并且很容易获得，如果你想了解书中的内容，我鼓励你去看看。 (3/5)

原推：Of course, the Youtube video is already free and easily available and I encourage you to check that out if you want an overview of what’s in the book. (3/5)
https://twitter.com/RayDalio/status/1521586668897280001