4.01 avg rating — 122,368 ratings

"I was left dumbfounded upon finding out that Darwin developed his theory *after* Newton did his; its simple yet it required one to really step out of the box to develop it. The next revolution is biological, and so I should think this book merits the number one spot."

4.24 avg rating — 4,823 ratings

"The foundations of a lot of man's greatest achievements lie in the physics and the math that arose from this book. Inspirational."

3.72 avg rating — 25,484 ratings

"Descartes, for me, explains the meaning of being and opens up a whole new way in which to interpret the world and life itself. Best read early on in life. "

3.68 avg rating — 199,732 ratings

"Communism doesn't fit in with us, but the thought of it is beautiful; this is where it all started. "

4.06 avg rating — 55,200 ratings

"Set a precedence for the environmental movement. Perhaps not the most intellectual read there is, but its provocative and, even today, relevant. "