And when you look along the way we've come, there are spirals of vultures wheeling.

Travel doesn't merely broaden the mind. It makes the mind.

I never liked Jules Verne, believing that the real was always more fantastic than the fantastical.

A journey is a fragment of Hell.

And the formation of man is the most pressing problem facing humanity.

As a general rule of biology, migratory species are less 'aggressive' than sedentary ones. There is one obvious reason why this should be so. The migration itself, like the pilgrimage, is the hard journey: a 'leveller' on which the 'fit' survive and stragglers fall by the wayside. The journey thus pre-empts the need for hierarchies and shows of dominance. The 'dictators' of the animal kingdom are those who live in an ambience of plenty. The anarchists, as always, are the 'gentlemen of the road'.

Because they knew each other's thoughts, they even quarrelled without speaking.