shakespeare: The fool doth think he is wise, but the wise man knows himself to be a fool
Socrates: "I know one thing: that I know nothing."
W B Yeats: "The best lack all conviction, and the worst / Are full of passionate intensity."
Bertrand Russell: "The fundamental cause of the trouble is that in the modern world the stupid are cocksure while the intelligent are full of doubt."
Charles Darwin: "Ignorance more frequently begets confidence than does knowledge."
the Tao Te Ching: "To know that you do not know is highest. To not know but think you know is flawed. ... The sages are without fault, because they recognize the fault as a fault".
Romans 1:22. "While claiming to be wise, they became fools."
Rom 12:16 "Do not be wise in your own estimation"
there's samsung tectiles..https://www.samsung.com/us/microsite/tectile/
all sorts of stuff from tagstand..http://nfctags.tagstand.com/collections/stickers
moo makes nfc business cards..http://us.moo.com/nfc/
but yea, be careful..http://codebutler.com/announcing-farebot-for-android/
and then there's this other interesting thing..http://beta.snowshoestamp.com/pricing/