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

Social proof is the idea that if you make a behaviour feel commonplace, it becomes more common still

Richard Shotton, author – The Choice Factory