"The positive heuristic of the programme saves the scientist from becoming confused by the ocean of anomalies."

"Research programmes, besides their negative heuristic, are also characterized by their positive heuristic."

"Originality does not consist in saying what no one has ever said before, but in saying exactly what you think yourself."

"When I worked with wildlife a lot in the Eighties and Nineties, I learnt the meaning of patience. And when I worked with trees, I learned the meaning of humility."

"I go running three times a week - outside in the park, come rain or shine, and I hate every moment of it. I hate everything about it. But I know it's important for health reasons and the reason why I run, in particular, is because my stage work is like cardiovascular work so I don't want to lose my breath on stage."

"The more that learn to read the less learn how to make a living. That's one thing about a little education. It spoils you for actual work. The more you know the more you think somebody owes you a living."