For those who believe, no proof is necessary. For those who don't believe, no proof is possible.
Sanely applied advertising could remake the world.
Attitude is your acceptance of the natural laws, or your rejection of the natural laws.
I find it difficult to believe that words have no meaning in themselves, hard as I try. Habits of a lifetime are not lightly thrown aside.
The very first law in advertising is to avoid the concrete promise and cultivate the delightfully vague.