Some examples of key lyrics include:
* "Imagine there's no heaven, it's easy if you try" (Imagine by John Lennon)
* "Every breath you take, every move you make, every bond you break, every step you take, I'll be watching you" (Every Breath You Take by The Police)
* "I can see clearly now, the rain has gone, I can see all obstacles in my way" (I Can See Clearly Now by Johnny Nash)
* "We are the champions, my friends, and we'll keep on fighting till the end" (We Are the Champions by Queen)
* "So much they keep us down, but not this time" (Survivor by Destiny's Child)
These lyrics are all memorable, meaningful, and often provide insight into the overall theme or message of the song. They are also often the lines that listeners remember and sing along to the most.