The clothes. The smoking. The drinking. The illicit office romances. Everything about AMC's wildly popular drama Mad Men screams of a bygone era.

That is, except the script. Don Draper might deal in print ads, billboards, and radio spots, but his ideas about how to advertise, sell, and market still resonate today. Just think about how relevant some of his best quips are:

"If you don't like what's being said, change the conversation."

"You are the product. You feeling something."

"The day you sign a client is the day you start losing one."

Don might not be a great role model in his personal life, but many a viewer has wished they could bottle up his mojo to bring to work. In this SlideShare, InsightSquared compiles 20 of the advertising giant's best lines. Read them before your next call to get yourself in Don's cool mind frame -- but maybe skip the four glasses of Canadian Club.

What's your favorite nugget of sales wisdom from Draper? Or better yet, share your favorite fictional sales superhero.

This post originally appeared on HubSpot's Sales Blog.

Originally published Nov 19, 2014 5:00:23 AM, updated December 02 2014