This agreement and all rights and duties  hereunder  are  personal  to Licensee and shall not，  without  the  written  consent  of  Licensor，  be assigned， mortgaged， sublicensed or otherwise encumbered by Licensee or by operation of law. (来源：专业英语学习网站 http://www.EnglishCN.com)

　　Licensor may assign but shall furnish written notice of assignment.

　　22 No Waiver， etc.

　　None of the terms of this agreement can be waived or  modified  except by an express agreement in writing signed by both parties.  There  are  no representations， promises， warranties，  covenants  or  undertakings  other than those contained  in  this  agreement，  which  represents  the  entire understanding of the parties.  The  failure  of  either  party  hereto  to enforce， or the delay by either party in  enforcing，  any  of  its  rights under this agreement  shall  not  be  deemed  a  continuing  waiver  or  a modification thereof and either party may， within  the  time  provided  by applicable law， commence appropriate legal proceeding to  enforce  any  or all of such  rights.  No  person，  firm，  group  or  corporation  （whether included in the Name or otherwise） other than Licensee and Licensor  shall be deemed to have acquired any rights by reason of anything  contained  in this agreement， except as provided in paragraphs 6 and 21.

　　In witness whereof， the parties have caused this instrument to be duly executed as of the day and year first above written.

　　___________________， Licensor

　　By________________________

　　Title：

　　___________________， Licensee

　　By________________________

　　Title：