Citizen from one state cannot sure a person in another state through federal court? true or false

I believe its true

Explanation:

I asked my brother and he said he wasn't sure as well and if you search it up it says the federal court may not even hear the case unless the state consents to jurisdiction (the official power to make legal decisions and judgments)

the declaration states, “we hold these truths to be self-evident, that all men are created equal, that they are endowed by their creator with certain unalienable rights, that among these are life, liberty, and the pursuit of happiness….”

i only have part a but here is the first one: - lewis and clark are born

- lewis marries sacajawea and clark is jealous  

- clark drowns lewis and then goes to jail