The heart of creativity is discipline.

A principle isn't a principle until it costs you something.

The creative man with an insight into human nature, with the artistry to touch and move people, will succeed. Without them he will fail.

The truth isn't the truth until people believe you, and they can't believe you if they don't know what you're saying, and they can't know what you're saying if they don't listen to you, and they won't listen to you if you're not interesting, and you won't be interesting unless you say things imaginatively, originally, freshly.

Those who are going to be in business tomorrow are those who understand that the future, as always, belongs to the brave.

You cannot sell a man who isn't listening; word of mouth is the best medium of all; and dullness won't sell your product, but neither will irrelevant brilliance.

Our job is to sell our clients' merchandise... not ourselves. Our job is to kill the cleverness that makes us shine instead of the product. Our job is to simplify, to tear away the unrelated, to pluck out the weeds that are smothering the product message.