Heart of Darkness
Throughout history man has always acquired the drive to exert power upon an inferior opponent. In this case, the search for ivory in Africa has man straying away from morals and ultimately falling into the trap of corruption. The colonization of Africa led the way for black slavery, an imperialistic idea; his idea is used in Heart of Darkness as a way for man to gain riches through the ivory trade, which Joseph Conrad speaks out against.
When the word imperialism comes to mind we think of one country directly extending their power onto another country, a general idea. Imperialism is not only a way for man to create an empire, but a way for man to become colonized. This idea can be incorporated with Heart of Darkness in that the ivory trade causes man to disregard any morals they have toward human nature and focus more on the root of all evil, money. Colonization is a form of imperialism, a less direct figure but a more advanced system. ?I was thinking of the very old times, when the Romans first came here nineteen hundred years ago?the other day..Light came out of this river since?you say Knights? Yes; but it is like a running blaze on a plain, like a flash of lightning in the clouds. We live in the flicker?may it last as long as the old earth keeps rolling!? pg. 11.

Williams 2
This quote, by Marlow, is explaining the aspects of life. He is explaining that our life, in the moment, is the smallest portion of things that go on day in and day out.
?I came upon a boiler wallowing in the grass, then found a path leading up the hill. It turned aside for the boulders, and also for an undersized railway-truck lying there in its back with its wheels in the air. One was off. The thing looked as dead as the carcass of some animal. I came upon more pieces of decaying machinery, a stack of rusty nails?? pg. 19. This lets us paint a picture of the scenery at the station. There?s no life to the equipment, as if the machinery has no value or reason for being.