Nothing is so powerful as an insight into human nature... what compulsions drive a man, what instincts dominate his action. If you know these things abut a person, you can touch him at the core of his being.
William BernbachIt is insight into human nature that is the key to the communicator's skill. For whereas the writer is concerned with what he puts into his writings, the communicator is concerned with what the reader gets out of it. He therefore becomes a student of how people read or listen.
William Bernbach