These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
Growing the Beard: Though Pink Floyd had some success with The Piper at the Gates of Dawn in their native Britain, this was the album that truly made them the ubiquitous rock 'n' roll juggernaut that we know today, and it's almost universally seen as their Magnum Opus.
Some Anvils Need to Be Dropped: Quite a few songs on the album qualify, but "Us and Them" really takes the cake. Its message is simple, universally applicable, and about as subtle as a hammer to the face: everyone is capable of inhumanity, and trying to dehumanize your supposed enemies as some monolithic "Them" has never made the world a better place. Put all that together, and you've got one of the most beautiful Protest Songs in the history of rock n' roll.