“Mind, none of us would feel exactly like this. What saves us is efficiency—the devotion to efficiency. But these chaps were not much account, really. They were no colonists; their administration was merely a squeeze, and nothing more, I suspect. They were conquerors, and for that you want only brute force—nothing to boast of, when you have it, since your strength is just an accident arising from the weakness of others. They grabbed what they could get for the sake of what was to be got. It was just robbery with violence, aggravated murder on a great scale, and men going at it blind—as is very proper for those who tackle a darkness. The conquest of the earth, which mostly means the taking it away from those who have a different complexion or slightly flatter noses than ourselves, is not a pretty thing when you look into it too much. What redeems it’s the idea only. An idea at the back of it; not a sentimental pretence but an idea; and an unselfish belief in the idea.” (chapter 1, paragraph 13)
Originally I believed that Marlow did not consider the colonists to be negative in any way. However, he quickly contradicts his notion that the colonists are simply bringing civilization to the other races. Now it appears that Marlow believes the colonists are only concerned with the potential profit and conquering the different race of people.