The countries who do the best in international comparisons, whether it's Finland or Japan, Denmark or Singapore, do well because they have professional teachers who are respected, and they also have family and community which support learning.

Don't assume that the way that one searches and researches is the same from one era to another - it isn't. In the 19th century, most research was done by amateurs: either individuals who were rich or individuals who had a day job. In the 20th century, most researchers worked at universities or think tanks and received money from the government or from foundations to pursue their work. In our time, the sources of support and the locations for research may be quite different.

I reject the notion that human beings have a single intelligence, which can be drawn on for the full range of problem solving.

Being creative means first of all doing something unusual... On the other hand, however unusual it may be, the idea also has to be reasonable for people to take it seriously.

We should spend less time ranking children and more time helping them to identify their natural competencies and gifts and cultivate these. There are hundreds and hundreds of ways to succeed and many, many different abilities that will help you get there.

One must exploit the asynchronies that have befallen one, link them to a promising issue or domain, reframe frustrations as opportunities, and, above all, persevere.

Any profession should have norms around the issue you raise. And, in the words of the great economic thinker Albert Hirschman, we all owe a measure of loyalty to professional norms. But when the norms seem unhelpful or unproductive, one needs to speak up - to activate voice. And in the extreme, if the profession and one's colleagues seem estranged from a thoughtfully selected course of action, you need to consider the possibility of exit. Of course, if you knowingly violate norms or laws, you need to be prepared to face the consequences - or to lead a revolution!