Not just philosophical, very practical.

PG's "lies we tell kids" is just scratching the problem that Gandhi dedicated his whole life: can you live in a society and always tell the truth and only truth?

Very true. He has noted that he had told only one lie in his life. You can find his famous quotes here.

http://thinkexist.com/quotes/mahatma_gandhi/

Again, with a guy like Gandhi you're going to understand better from a frank biography than his autobiography. He was a deeply flawed man in many respects.

The great thing about Gandhi is that he openly recorded his flaws - not many autobiographical writings do that.

Does he talk about he effectively killed his wife by denying her medical treatment? Or his racism?