In the 1920s, a generation before the coming of solid-state electronics, one could look at the circuits and see how the electron stream flowed. Radios had valves, as though electricity were a fluid to be diverted by plumbing. With the click of the knob came a significant hiss and hum, just at the edge of audibility.

As soon as the printing press started flooding Europe with books, people were complaining that there were too many books and that it was going to change philosophy and the course of human thought in ways that wouldn't necessarily be good.

Particle physicists may freeze a second, open it up, and explore its dappled contents like surgeons pawing through an abdomen, but in real life, when events occur within thousandths of a second, our minds cannot distinguish past from future.

For much of the twentieth century, 1984 was a year that belonged to the future - a strange, gray future at that. Then it slid painlessly into the past, like any other year. Big Brother arrived and settled in, though not at all in the way George Orwell had imagined.

I think India has several advantages in the knowledge sector, in the software sector.

If you believe in democracy, the overreach of leaders is a good reminder that vigorous public debate and time-consuming due process are not only more fair and more just, but that over the long term they usually produce better government, too.

I have been really furious about the constant charges being lobbed against me about identity politics that, by the way, are only lobbed against women and candidates of color.

I don't believe we need the government's help as much as some think we do. That belief sets me apart from the Democrats, since their way of dealing with everything is to tax and spend.