Bathroom walls aren't exactly known as a hive of intelligent discourse. In fact, most of the stuff carelessly scrawled in public restrooms is misinformed and/or hateful. Once in awhile, though, somebody takes the time in between flushing and washing hands to scribble something intelligent and, dare we say it, profound.

Check out our favorite pieces of bathroom graffiti that might just make you think. Which is the smartest? Vote for your favorites.

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  • Refrigerator Haiku

    5 syllables, 7 syllables, 5 syllables. It works. And quite beautifully, too. (Via <a href="" target="_hplink">Graffiti Project</a>)

  • Group Discussion

    An interesting topic of debate. (Via <a href="" target="_hplink">Graffiti Project</a>)

  • Token Graffiti

    Featuring on every bathroom stall door in the world. (Via <a href="" target="_hplink">Graffiti Project</a>)

  • Philosophical Dilemma

    The unanswerable question on every philosopher's mind. (Via <a href="" target="_hplink">Ask A Urinal</a>)

  • Making A Difference

    Reminding everyone going to the bathroom that they are an important part of the world. (Via <a href="" target="_hplink">Flickr: anetferrara</a>)

  • Leaving A Mark

    Tragic, but beautifully written on the bathroom wall. (Via <a href="" target="_hplink">Flickr: Made Underground</a>)

  • RIP 2011

    Our condolences. (Via <a href="" target="_hplink">Absurd Bathroom Graffiti</a>)

  • Part Of The Solution

    Any chemists out there? (Via <a href="" target="_hplink">Flickr: Houston Marsh</a>)

  • Quick Break

    But back soon. (Via <a href="" target="_hplink">Graffiti Project</a>)

  • Nothing To Say

    And yet, saying nothing is still saying something. (Via <a href="" target="_hplink">Flickr: stu_eve</a>)

  • Beautiful Poetry

    Gets right to the point. (Via <a href="" target="_hplink">Blame It On The Voices</a>)

  • Drawing The Line

    How true. (Via <a href="" target="_hplink">Graffiti Project</a>)

  • Perfect Response

    Touché. (Via <a href="" target="_hplink">From The Bathroom Wall</a>)

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