We have seen a change in the nature of attacks in the past couple of months with these killings. We hope these incidents will not deter families from sending their children to school.

It's not easy to point out what the motivation is. But it may be that education is seen as a very visible sign of progress.

Militants are clearly trying to intimidate communities and force families not to send their girls to school. We hope these incidents will not deter families. ... Fortunately, so far we have not seen a decline in girls attending.

The effect of change in surroundings is like that of lapse of time in making the past seem remote.

We're inquiring into the deepest nature of our constitutions: How we inherit from each other. How we can change. How our minds think. How our will is related to our thoughts. How our thoughts are related to our molecules.

They are largely cosmetic in nature. They're an attempt to satisfy critics who want broader change.