One reason I like reading old stuff, like the ancient Greeks, and others, is because they had to be so much better at observing nature. Not sure if I am putting this right, but they didn't have our technology and instrumentation to get in the way. They had to really observe, and think. This is as much true of their religious and philosophical scholars as their scientists. There wasn't always such a clear distinction between the two, and still needn't be as DrRichardCranium points out. I would love to go back to those times. Aristotle and others. I read some of his stuff on meteorology.
It would be nice to live in a world with less clutter.