Brain power improves by brain use, just as our bodily strength grows with exercise. And there is no doubt that a large proportion of the female population, from school days to late middle age, now have very complicated lives indeed.
It would no doubt be very sentimental to argue - but I would argue it nevertheless - that the peculiar combination of joy and sadness in bell music - both of clock chimes, and of change-ringing - is very typical of England. It is of a piece with the irony in which English people habitually address one another.
There is no doubt that, since 1977 and the launch of Apple II - the first computer it produced for the mass market - many things which used to be done on paper, or on the telephone, have been done easier and faster on a screen.
People are going to doubt Aaron Donald and they're going to like Aaron Donald. But at the end of the day, my job is to make plays and let them speak for me.
What I would say to the young men and women who are beset by hopelessness and doubt is that they should go and see what is being done on the ground to fight poverty, not like going to the zoo but to take action, to open their hearts and their consciences.
There is no doubt that counterterrorism takes time because it is not action against a regular army.
There is no doubt that in the last years of the UPA's rule, a certain lethargy had set into the way the central government went about its business.
Wonder rather than doubt is the root of all knowledge.
In the case of the Analytical Engine, we have undoubtedly to lay out a certain capital of analytical labour in one particular line, but this is in order that the engine may bring us in a much larger return in another line.
I see myself as an avatar of curiosity and doubt.