Customers don't know what they want. There's plenty of good psychology research that shows that people are not able to accurately predict how they would behave in the future. So asking them 'Would you buy my product if it had these three features?' or 'How would you react if we changed our product this way?' is a waste of time. They don't know.

The discussion in Washington has changed dramatically. I mean it's no longer a question of should we address entitlements - it's no longer a question of do we need to reduce spending in the future.

The past cannot be changed. The future is yet in your power.

Television has changed the American child from an irresistable force to an immovable object.

The first time I sang in the church choir two hundred people changed their religion.

When you choose your friends don't be short-changed by choosing personality over character.

We've got to understand that the whole nature of the way American democracy guards its freedom has been changed.

The first of all commodities to be exchanged is labour and the freedom of man consists only in the exercise of the right to determine for himself in what manner his labour shall be employed and how he will dispose of its products.

137 years later Memorial Day remains one of America's most cherished patriotic observances. The spirit of this day has not changed - it remains a day to honor those who died defending our freedom and democracy.

End-of-the-world stories tend to ring true. I've always been drawn to them but as I wrote my own I found surprising pleasure in creating a world that is so radically changed yet where there's so much meaning and value in every small and ordinary thing we have and take for granted: hot showers enough food friends routines.