Do opposites really attract?

I am sure everyone has heard this... and for the most part, I can agree that this statement has some truth to it, However, just because opposites attract, doesn't necessarily mean they stay drawn to each other. Relationships that begin with conflicting points of view or beliefs may start out wonderful.. but eventually I feel that fizzles and resentment sets in. Whether it be friendships, intimate relationships or even casual acquaintances, if there are too many conflicting characteristics, the relationship is never going to grow and thrive. Now, this is just my opinion, and maybe you see it differently. Maybe you have a friend that has contrasting views on everything, or are married to your polar opposite, and it works for you. Maybe you learn a lot from the other persons perspectives, and are completely content with having opposing personalities.

I would like to think that my opinion on this isn't a personality flaw. What I mean is, I am very much a person that "agrees to disagree". Just because another doesn't share my viewpoint doesn't make them wrong. I really value everyone for who they are, but being truly compatible with someone who doesn't share my beliefs seems unlikely. I guess I just feel as though in order to have a mutually gratifying relationship, you should possess similar ideas. That, in no way, means that I have this unrealistic thought that all meaningful relationships are only made when people have identical thoughts., but having too many differences doesn't seem to work either. I am not talking about what your favorite color is, or your preference in music, rather, your passions and values. For instance, being that I am a VERY compassionate person,  the majority of individuals I am close with share that characteristic with me. I cannot see myself being close with someone who is not as sympathetic and kind, let alone having a rewarding relationship.

I saw this quote:

"Opposites attract, but like minded last.." 

This simple sentence makes such sense to me. In my experience, relationships with people that have clashing opinions can leave one or both people feeling isolated. The connections once felt are replaced with bitterness and hostility. Confusion and indifference takes place of that initial attraction and curiosity. We learn and grow as individuals by our experiences in life, and the people meet. Values are made from an individuals impression on what is important, and essential to their life. How can relationships built on opposites endure when it is crucial to believe in your personal values? Having a common attitude about life, in my opinion, is vital for a successful relationship.. with anyone!