Don't forget the earth's about five thousand million years old, at least. Who can afford to live in the past?

I never think of myself as wise. I think of myself as possessing a critical intelligence which I intend to allow to operate.

It's so easy for propaganda to work, and dissent to be mocked.

I also found being called Sir rather silly.

The Companion of Honour I regarded as an award from the country for 50 years of work - which I thought was okay.

There are no hard distinctions between what is real and what is unreal, nor between what is true and what is false. A thing is not necessarily either true or false; it can be both true and false.

I ought not to speak about the dead because the dead are all over the place.