All of the following are considered plagiarism:
Even if you correctly cite according to the citation style manuals and give credit that the ideas were created by someone else you could be violating copyright. If the expressions are fixed in a tangible medium (for example the pages of a book, video clip on a dvd, pages in a journal, or even a written speech) then the ideas are most likely protected by federal copyright laws. Why would you take the ideas and thoughts of someone without permission?
There are guidelines when borrowing intellectual property from others. If a brief amount of the work (generally less than 10%) is used for an academic purpose (non profit accreditated educational institution like USC Upstate) for less than one semester (not to be used again for a second time) then it is likely okay to use the material if access is restricted (limited to your professor or classmates) under fair use guidelines. To find out more about copyright visit http://uscupstate.libguides.com/copyright