Valuing differences is the foundation of creating synergy. We are effective when we value and embrace the differences of others rather than rejecting or merely tolerating them. We see others' differences as strengths, not weaknesses.
Insecure people have a high need to clone others, to mold them over into their own thinking. They don't realize that the very strength of the relationship is in having another point of view. Sameness is uncreative--and boring. The essence of synergy is to value differences—to respect them, to build on strengths, to compensate for weaknesses.
If you encounter someone with a differing opinion to you, make a list of their strengths. Then when someone disagrees with you, say, "Great! You see things differently. I need to listen to you."