Attention is zero-sum. Everyone only has 24 hours in a day — so bigger winners means bigger or more losers.

Andre Redelinghuys, Founder – Attention Labs

Marketing is a battle of perceptions, not products.

Al Ries & Jack Trout, renowned marketing strategists

Advertising is just telling lots of people about the stuff you make and why it’s worth buying.

Dave Dye, advertising legend