The qualities that made him what he was were of a very simple kind, and his character owed its strength, not to any complexity or subtlety of training and education, but rather to that very bareness and simplicity of circumstance that made him a man of single rather than manifold ideas.
He was not capable of seeing both sides of a question; he saw only one side.

But he came of a great race; and it was the qualities of his race, combined with this simplicity and even perhaps vacancy of mind, that gave to his idea, when once the seed of it had lodged in his mind, so much vigour in growth and room for expansion.

Think of him, then, at the age of twenty-five as a typical plebeian Genoese, bearing all the characteristic traits of his century and people--the spirit of adventure, the love of gold and of power, a spirit of mysticism, and more than a touch of crafty and elaborate dissimulation, when that should be necessary.
He had been at sea for ten or eleven years, making voyages to and from Genoa, with an occasional spell ashore and plunge into the paternal affairs, when in the year 1476 he found himself on board a Genoese vessel which formed one of a convoy going, to Lisbon.

This convoy was attacked off Cape St.Vincent by Colombo, or Colomb, the famous French corsair, of whom Christopher himself has quite falsely been called a relative.

Only two of the Genoese vessels escaped, and one of these two was the ship which carried Columbus.