It comes from serving others I believe.
Answer:
Im very confused, you should provide more information, so us as an audience can provide you with the most credible answer.
Explanation:
They are complete sentences. Both have an independent and dependent clause.
https://teachfieldsteach.weebly.com/uploads/2/2/3/6/22363588/immigrant_contribution_by_jfk.pdf
Answer:
it's "both take something from you when they leave"
Explanation: