Throughout history, some books have changed the world. They have transformed the way we see ourselves – and each other. They have inspired debate, dissent, war and revolution. They have enlightened, outraged, provoked and comforted. They have enriched lives – and destroyed them. Now Penguin brings you the works of the great thinkers, pioneers, radicals and visionaries whose ideas shook civilization and helped make us who we are. Originally published anonymously, Nature was the first modern essay to recommend the appreciation of the outdoors as an all-encompassing positive force. Emerson’s writings were recognized as uniquely American in style and content, and launched the idea of going for a walk as a new way of looking at the world.