I am reading astronomy notes now. I am very impressed by the intellects in the past. They made so many profound discoveries impact on our life greatly and advance humanity to an amazing point. Nicholas Copernicus overturned the erroneous geocentric model that Claudius Ptolemy introduced and spurred deeper explorations into the universe. Galileo pointed the first telescope at the sky and make spectacular discoveries. They have contributed some much to humanity.

Looking at present, there are a lot more advancements and inventions in the light of modernity. Many do benefit us and bring us comfortable lifestyle. However, a lot of these advancements are causing tremendous disruptions to the environment, other species and even our own kind. Sometimes, I wonder.. What are we actually doing to ourselves? Are we destructing our own homeland?