This book warped my mind at age 12. I seem to remember mulling over the metaphysical consequences every waking hour for several months after reading it in one sleepless two-day stretch.

Easy to learn from, and exceedingly comprehensive for its size. An essential read for just about anyone hoping to do good quantitative science.

Among the most moving books I've ever read. It's as though all of the intricacies, self-introspections, and tragedies of 20th civilization had been summed up in one man. Incredibly researched and beautifully written.