Maturity: Be able to stick with a job until it is finished. Be able to bear an injustice without having to get even. Be able to carry money without spending it. Do your duty without being supervised.

Much of the work legal executives do has to be supervised by a solicitor, irrespective of the experience or ability of the individual. In practice, this is a major disincentive to legal executives setting up their own high street practices. Even when they can do the work, they are still tied to solicitors.

Supervised learning works so well when you have the right data set, but ultimately unsupervised learning is going to be a really important component in building really intelligent systems - if you look at how humans learn, it's almost entirely unsupervised.

I think the political class in Berlin doesn't need to be supervised and monitored by intelligence services in order to find out what they're thinking. Just go to lunch with them, go to dinner with them, or read the papers.

For me, good service is efficient and discreet; it's that critical balance. As soon as the client sits down, the communication flow has to start. Customers need to feel that the waiters are supervised - that there's a system in place.

Maturity: Be able to stick with a job until it is finished. Be able to bear an injustice without having to get even. Be able to carry money without spending it. Do your duty without being supervised.