Remember the people you address are selfish, as we all are. They care nothing about your interests or profit. They seek service for themselves
Advertising is much like war, minus the venom
We cannot go after thousands of men until we learn how to win one.
The only purpose of advertising is to make sales. It is profitable or unprofitable according to its actual sales.
Impressive claims are made far more impressive by making them exact
Don't, to gain general and useless attention, sacrifice the attention that you want