Lateral trust among colleagues is as important as vertical trust within the hierarchy.

It is those who have the distinction of privilege who set the standards of disgust with failure.

There is a new science of complexity which says that the link between cause and effect is increasingly difficult to trace; that change (planned or otherwise) unfolds in non-linear ways; that paradoxes and contradictions abound; and that creative solutions arise out of diversity, uncertainty and chaos.

Your most memorable students are in your first classes and your last classes: make your last years the finest of your career.

In Finland, within very broad government guidelines, teachers create their own curricula together across schools in every community and district. They don't confine collaboration to their own individual schools and to just implementing other people's ideas.

On teacher education: induction into current mandates must not turn into seduction away from best practice.

It's important to be innovative when times are prosperous. It's essential to be innovative when they are not.