This philosophic message/challenge adorning/"besmirching" Caffe Trieste's bathroom wall in North Beach last November comes to us from Seven Morris via the "sfist" and "found" tags.
Sometimes a blank wall is miles more eloquent than anything that might besmirch it.
Well, the wall is no longer blank though, is it? Oh, you clever, bathroom philosopher/ tagger, you.
Send your Bay Area finds to found [at] sfist [dot] com or tag them "sfist" and "found" on Flickr! Let us know where/when you found the item and any other helpful info!