If I see a door ajar, I push on it to see how far it will open, and if it opens wide I go through it.

Marxism, Freudianism, global warming. These are proof - of which history offers so many examples - that people can be suckers on a grand scale. To their fanatical followers they are a substitute for religion. Global warming, in particular, is a creed, a faith, a dogma that has little to do with science.

In the long term, it is desirable that the human race, faced with the prospect of extinction on Earth, should prepare an escape route for itself to another inhabitable planet.

In the past, the U.S. has shown its capacity to reinvent its gifts for leadership. During the 1970s, in the aftermath of the Nixon abdication and the Ford and Carter presidencies, the whole nation peered into the abyss, was horrified by what it saw and elected Ronald Reagan as president, which began a national resurgence.

To many, Heathrow in August is a paradigm of Hell.

Conservation of energy. Never stand up when you can sit down, and never sit down when you can lie down.

Euphemism is a human device to conceal the horrors of reality.