Any failure by Mortgagee to insist upon the strict performance by Mortgagor of any of the terms and provisions of this Mortgage shall not be deemed to be a waiver of any of the terms and provisions hereof, and Mortgagee, notwithstanding any such failure, shall have the right thereafter to insist upon the strict performance by Mortgagor of any and all of the terms and provisions of this Mortgage to be performed by   Mortgagor.