Alain Stephen has taken an interesting approach with This Book Will Make You Think — because many of us would have heard philosophical quotes, probably out of context most of the time, and wondered about their significance, influence and meaning. 

While it primarily focuses upon the most popular philosophers (which, as you might guess, are male), the introductory section and index are really useful and detailed, and it covers pretty much every major quote from “The unexamined life is not worth living” to “I think therefore I am” to “You can discover more about a person in an hour of play than in a year of conversation”. It’s not a particularly heavy-going book in that regard, and is more of a dip-into than read at length text, but certainly one for the teens-and-over who are after a basic explanatory book. 

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