"Be the same mind" means to be in agreement or have the same opinion. The antonyms for this phrase would be "disagree," "differ," "oppose," "contradict," and "challenge." When people have opposing views, it can lead to conflicts and misunderstandings. It is important to try and understand someone else's perspective and have an open mind. Having different opinions can lead to healthy debates and discussions, but it is important to respect each other's viewpoints. By acknowledging and accepting differences, we can work towards finding common ground and solutions that benefit everyone.