He's the council-house boy who battled his way to the top of Tesco and transformed the supermarket's fortunes. Now, in our concluding extract from his inspirational new book, Sir Terry Leahy reveals the tough lessons he learned along the way ...and shares the ten simple truths that can help you on the road to riches.

Supermarkets destroy corner shops.’ ‘They tear the hearts out of local communities, concrete over fields, squeeze their suppliers and encourage us to eat unhealthily.’

And that’s just the more polite things people say about us.

But imagine if, back in 1980,  the government had agreed with that and decided to freeze the market as it was. I suspect Sainsbury’s would be No 1, and Tesco would be struggling to keep up.