Now the basic impulse behind existentialism is optimistic, very much like the impulse behind all science. Existentialism is romanticism, and romanticism is the feeling that man is not the mere he has always taken himself for. Romanticism began as a tremendous surge of optimism about the stature of man. Its aim - like that of science - was to raise man above the muddled feelings and impulses of his everyday humanity, and to make him a god-like observer of human existence.

Imagination should be used, not to escape reality but to create it.

Turning on the light is easy if you know where the switch is.

The sheer volume of evidence for survival after death is so immense that to ignore it is like standing at the foot of Mount Everest and insisting that you cannot see the mountain.

Christianity was an epidemic rather than a religion. It appealed to fear, hysteria and ignorance. It spread across the Western world, not because it was true, but because humans are gullible and superstitious.

It struck me that the popularity of Christmas is a matter of web-like consciousness. Childhood conditions us to relax and expand at Christmas, to forget petty worries and irritations and think in terms of universal peace. And so Christmas is the nearest to mystical experience that most human beings ever approach, with its memories of Dickens and Irving's Bracebridge Hall.

Now the basic impulse behind existentialism is optimistic, very much like the impulse behind all science. Existentialism is romanticism, and romanticism is the feeling that man is not the mere he has always taken himself for. Romanticism began as a tremendous surge of optimism about the stature of man. Its aim - like that of science - was to raise man above the muddled feelings and impulses of his everyday humanity, and to make him a god-like observer of human existence.