No need to reply the question, raxo.
Kahlil Gibran was a poet, born in Lebanon. One of his most famous lines of poetry in the English speaking world is from 'Sand and Foam' (1926), which reads : 'Half of what I say is meaningless, but I say it so that the other half may reach you'. This was taken by John Lennon and placed, though in a slightly altered form, into the song Julia from The Beatles' 1968 album The Beatles (a.k.a. The White Album).
Gibran's most famous line of all is that which inspired John F. Kennedy's oft quoted "Ask Not What Your Country Can Do For You," from his 1961 inaugural address. The quote was inspired by a 1925 article, "The New Frontier," in which Gibran wrote: "Are you a politician asking what your country can do for you or a zealous one asking what you can do for your country? If you are the first, then you are a parasite; if the second, then you are an oasis in a desert."
Not sure tho why he is credited to have co-written Julia, although he might have a right to. The line 'seashell eyes' is also said to be from Gibran. But I couldn't find anything about copyrights or this matter being taken to court. On several sites however, Julia is credited to Kahlil Gibran as well. These sites make a more realistic difference between who wrote what. There's A Place, for instance, is solely credited to John, All My Loving just to Paul. Golden Slumbers is credited to Paul McCartney and Thomas Dekker. Look here:
http://www.orthogonal.com.au/music/beatles/index.htmSo, I guess it is not the official credits given here, but there might be some truth in it.