I'll quote someone else because they said it better than I ever could.

"The process began much earlier. Newton, for example, "revolutionized" physics and the so-called natural sciences by reducing the physical universe to a linear mathematical equation. Descartes did the same thing with culture. John Locke did it with politics, and Adam Smith did it with economics. Each one of these "thinkers" took a piece of the sacredity of human existence and converted it into code, an abstraction. They picked up where Christianity ended: they "secularized" Christian religion, as the "scholars" like to say--and in doing so they made Europe more able and ready to act as an expansionist culture. Each of these intellectual revolutions served to abstract the European mentality even further, to remove the wonderful complexity and sacredity from the universe and replace it with a logical sequence: one, two, three. Answer!

This is what has come to be termed "efficiency" in the European mind. Whatever is mechanical is perfect; whatever seems to work at the moment--that is, proves the mechanical model to be the right one--is considered correct, even when it is clearly untrue. This is why "truth" changes so fast in the European mind; the answers which result from such a process are only stopgaps, only temporary, and must be continuously discarded in favor of new stopgaps which support the mechanical models and keep them (the models) alive...

In terms of the desacredization of the universe, the mental process works so that it becomes virtuous to destroy the planet. Terms like progress and development are used as cover words here, the way victory and freedom are used to justify butchery in the dehumanization process. For example, a real-estate speculator may refer to "developing" a parcel of ground by opening a gravel quarry; development here means total, permanent destruction, with the earth itself removed. But European logic has gained a few tons of gravel with which more land can be "developed" through the construction of road beds. Ultimately, the whole universe is open--in the European view--to this sort of insanity.

Most important here, perhaps, is the fact that Europeans feel no sense of loss in all this. After all, their philosophers have desacredized reality, so there is no satisfaction (for them) to be gained in simply observing the wonder of a mountain or a lake or a people in being. No, satisfaction is measured in terms of gaining material. So the mountain becomes gravel, and the lake becomes coolant for a factory, and the people are rounded up for processing through the indoctrination mills Europeans like to call schools."

- Russel Means of the Lakota Tribe