Good marketing speaks to human beings - the way human beings understand and take in information.
Simon SinekA why has to be for others. It's something you give to the world. It's the reason your friends love you because this is the thing that you give them and it fulfills them. This is the reason your clients love you or your fans love you because you give them something. It's something to offer, that's what the why is.
Simon Sinek