All of which is to say, they had the intelligence to examine honestly the clues the world offered them. They had the wisdom to seek the truth for its own sake, whatever it might prove to be. These are believers in the mind, in other words, who undertook a great expedition because they trusted their thoughts, conjectures, and hypotheses—and refused to shake themselves back into the small thoughts of ordinary life.
A cold coming they had of it, the worst time of the year to take a long journey. The ways deep, the weather sharp, the days short, the sun farthest off: in solsitio brumali, the very dead of winter."