Who wrote 'What's in a name That which we call a rose by any other name would smell as sweet.' and where?

That quotation is a close approximation of a line from Shakespeare's Romeo and Juliet. That line is talking about language and saying that what really matters is what a person is, not what groups he belongs to. That Words don't mean much... you can still smell a rose and appreciate its beauty even if you called a particular rose "axle grease" instead. The line is just after Juliet finds out that Romeo belongs to a group that she has hated all her life. She already loves him though, and realizes that no matter what group he belongs to (in this case his family), she still loves him for who he is.