Advertising - A judicious mixture of flattery and threats.

Advertising may be described as the science of arresting human intelligence long enough to get money from it.

Advertising may be described as the science of arresting the human intelligence long enough to get money from it.

Advertising: the science of arresting the human intelligence long enough to get money from it.

I don't know the rules of grammar. If you're trying to persuade people to do something, or buy something, it seems to me you should use their language.

If I were founding a university I would begin with a smoking room; next a dormitory; and then a decent reading room and a library. After that, if I still had more money that I couldn't use, I would hire a professor and get some text books.