The obligations imposed by Paragraphs 3-6, above, of this letter agreement are severable and should be construed independently of each other. The invalidity of one such provision shall not affect the validity of any other such provision. If any provision if Paragraphs 3-6 shall be invalid or unenforceable, in whole or in part, or as applied to any circumstance, under the laws of any jurisdiction which may govern for such purpose, then such provision shall be deemed to be modified or restricted to the extent and in the manner necessary to render the same valid and enforceable, either generally or as applied to such circumstance, or shall be deemed excised from this letter agreement, as the case may require, and this letter agreement shall be construed and enforced to the maximum extent permitted by law, as if such provision had been originally incorporated herein as so modified or restricted, or as if such provision had not been originally incorporated herein, as the case may be.