fixed minds vs growing minds

The idea of a fixed mind basically means that one is brought into this world with a certain capacity of knowledge and cannot learn or retain more than that. On the other hand a growing mind is considered one that is always adding more to the mix. I believe in growing minds as opposed to the idea of a fixed mind. I see a fixed mind as some excuse for a student or person to say they can't do something. It is important, especially being a teacher, that I convey the message to my students and their parents that no matter what their background or how they were raised, they have just as much capability of learning as anyone else.