There are different kinds of motivation, and the kind matters more than the amount.

Non-cooperative approaches, by contrast, almost always involve duplication of effort, since someone working independently must spend time and skills on problems that already have been encountered and overcome by someone else. A technical hitch, for example, is more likely to be solved quickly and imaginatively if scientists (including scientists from different countries) pool their talents rather than compete against one another.

The race to win turns us all into losers.

In outstanding classrooms, teachers do more listening than talking, and students do more talking than listening. Terrific teachers often have teeth marks on their tongues.

If unconditional love and genuine enthusiasm are present, praise isn't necessary. If they're absent, praise won't help.

In short, with each of the thousand-and-one problems that present themselves in family life, our choice is between controlling and teaching, between creating an atmosphere of distrust and one of trust, between setting an example of power and helping children to learn responsibility, between quick-fix parenting and the kind that's focused on long-term goals.

Sometimes we have to put our foot down, ... but before we deliberately make children unhappy in order to get them to get into the car, or to do their homework or whatever, we need to weigh whether what we're doing to make it happen is worth the possible strain on our relationship with them.