双方本着诚实信用、互惠互利的原则订立本合同供双方共同遵守执行。

双方本着诚实信用、互惠互利的原则订立本合同供双方共同遵守执行。
【正确答案】：In line with the principles of good faith and mutual benefit, the Parties hereby enter into this Contract / Agreement as set forth below (or: for both Parties to observe).