If any part of this Agreement, with the exception of Paragraphs 2, 3, 4, 5, 10, 11 and 14, is held by any tribunal of appropriate jurisdiction to be invalid or unenforceable, that part shall be stricken from this Agreement and all other terms of this Agreement shall remain in full force and effect to the full extent permitted by law. Paragraphs 2, 3, 4, 5, 10, 11 and 14 are the essence of this Agreement and should any part of these paragraphs be deemed invalid or unenforceable, this Agreement shall be null and void and any consideration received under this Agreement shall be returned to Employer.