Hi Dana! You can definitely reuse the videos and quotes from our prebuilt content.
You can reuse a video or a block by saving it as a Block Template. You don't need to save other lessons or content, just the ones that you need.
Check out this article to learn more about how you can create, share, and reuse existing blocks using Block Templates!
On a side note - when you reply via email, it includes your email signature with contact information in the public discussion. You can edit it out of the post here if you wish!