Many people think they would like to be what is called dynamic but it does not appear that they always have a very clear idea of what that expression really means. Sometimes they think it means being somewhat aggressive and noisy, or even bombastic, in manner. In other cases, they seem to think it means drawing attention to themselves in some less blatant but equally effective way. In reality nothing could be farther from the truth.
A dynamic person is a person who really makes a difference in the world; who does something that changes things or people. The magnitude of the work done may not be very great, but the fact still remains that the world is a little different because that person has lived and worked. That is a dynamic person.
Dynamic people like St. Paul or Washington, or Napoleon, change the lives and destinies of millions of people, and their work is known to all; but there are many men and women up and down the country whose works are not well known or known at all, and yet on their own scale they are dynamic, because they have actually changed the world in even a small way.
If you really get something done, no matter how small a thing it may be, you are dynamic, and the world is different because you lived in t. If you are only pretending to do things or talking about them, or building up appearances, you are not dynamic; you are play acting.
by Emmet Fox