Here are some words and expressions that appear in the video:
play a role (verb phrase): contribute to something, have a hand in
– My father has played an important role in my life growing up.
drive (verb): influence or make someone work hard
– What drives you to study so hard?
hold that thought (verb phrase): used to tell someone to remember their ideas for later use
– Please hold that thought. I know you want to discuss getting a new car, but let me finish dinner before we talk about that.