Nelson Mandela

People respond in accordance to how you relate to them. If you approach them on the basis of violence, that's how they'll react. But if you say, 'We want peace, we want stability,' we can then do a lot of things that will contribute towards the progress of our society.

And I think that still is true of this business - which is basically research and development - that you probably spend more time in planning and training and designing for things to go wrong, and how you cope with them, than you do for things to go right.