Niels Bohr Institute sculptor Rikke Raben for the Niels Bohr Institute. On the front is a portrait of Niels Bohr, the atom sign and stars. The illustration on the back is inspired by a quote from Bohr: "What is it that we human beings ultimately depend on? We depend on our words. We are suspended in language. Our task is to communicate experience and ideas to others". On the back of the medal: "Unity of Knowledge" – the title of a lecture given by Bohr at Columbia University in 1954. "Nosce te ipsum" is Latin and means "know thyself". This quote originates from
Noun phrase rules of the language in question; for English, see English articles.) In the original X-bar theory, the two respective types of entity are called noun phrase (NP) and N-bar (N, N′). Thus in the sentence "Here is the big house", both "house" and "big house" are N-bars, while "the big house" is a noun phrase. In the sentence "I like big houses", both "houses" and "big houses" are N-bars, but "big houses" also functions as a noun phrase (in this case without an explicit determiner). In some modern theories of syntax, however, what are called "noun phrases" above are no