Do you need permission to use another author's line or quote as your own title?

First, go to http://www.copyright.gov/ and get a firm understanding of what copyright is.

Titles cannot be protected by copyright. Also, it is not copyright infringement to use a line of a work as a title. There could be TRADEMARK issues, however. For example, you can't title your book Harry Potter and the Bloody Sparrows, since Harry Potter is a registered trademark. But trademark is a different set of laws from copyright. Trademark is designed to prevent confusion in the marketplace and to prevent third party's from trading on the trade dress and branding of others. Copyright protections the presentation of ideas in a fixed format.

Plagiarism and copyright infringement are two entirely different things. Any work by Shakespeare or Yeats, etc., will be out of copyright, in public domain, and you do not infringe on copyright when you use that. If you use ANY quote from a published work, or a song, TV show, anything that you yourself did not create, even if you reword it, you MUST give an internal citation and then list it in your works cited or references. (A bibliography is slightly different and can include works that you used but did not directly or indirectly refer to.)

Many authors use other author's lines as titles. Even Star Trek's "The Undiscovered Country" title comes from Shakespeare. If an author uses a line from a published work that is still protected by copyright, then, yes, permission must be obtained. If you're just using something in a paper you're writing, you need only provide a proper citation to avoid plagiarism.

It depends upon several factors. Is the author still living? Is the work copyrighted? Is the copyright still in effect? If deceased, does the author's estate still have the copyright?

It only makes sense and would be common decency to acknowledge the source of the quote if the author is deceased or if the copyrights have expired. If the author is living and the copyrights are still in effect, you are legally obligated to seek permission form the responsible source.

A phrase from a book is definitely an ethical no-no (plagerism) however, a phrase is just a phrase and the original author or heirs would have a hard time proving a one liner was created solely by the author. Now a paragrah re-written word for word would be a different matter.

No that's fine. Using a single phrase or line isn't plagiarism. I think it would be good manners to have a bit of the poem at the front of the book though to show where it came from and to put it in context.

Huge numbers of book titles come from quotes. They should always be acknowledged but if the author is long dead and hence the works in question out of copyright then it isn't illegal.

Its copyright infringements. Unless he quote that it from William Butler Yeats

Not for a title, you don't. You can call your book _Gone With the Wind_ if you want; it's quite legal.

It would be hard to get permission but you have to cite where the wuote came from.

copyright infringments or pledgerism. you have to get it ok'd first.