This book was a pure delight. The subtitle "Adventures of a Curious Character" is spot-on. Feynman gave an amazingly human and honest view into his philosophy and take on life, thought a series of stories. 
 One thing that struck me most deeply was his passion for learning new things. You would think a world-famous Physicist would just be passionate for Physics - but Feynman was curious about everything he saw. He dabbled in art and was successful enough to have a show, he joined a Brazilian Bongo group and competed with them, he hung out in Vegas until he grokked gambling, he spent time in strip bars in Arizona until he figured out how to pick up women, he cracked safes in Los Alamos for fun - the list goes on! My take: you should have your passions - but you should also have your hobbies. I think I need a new hobby :) 
 I really enjoyed his lessons learned from observing the Brazilian educational system. He noted that many of the students were simply memorizing words and formulas and had no understanding of the concepts they applied to. I think this is not a unique problem in education. 
 Another lesson learned from Feynman's studies of science is to never take any data for granted. Always always question the sources. Whenever Feynman did an experiment he would re-generate many of the numbers on his own - even if they had been published in other places. For many things we are (and not just in science) standing on the shoulders of giants. The easiest way to be led astray is if those results were never right to begin with. 
 I think Feynman was in his heart a true educator and scientist, with real integrity. And I think it drove him nuts how many important decisions are made using unscientific principles. This book was a light-hearted attempt to point that out - not to mention, a very entertaining read.