Stupid is as Stupid Does

[asma mohammad]

i think this connected with behavour . so if someone calls you stupid that deosn't mean that you really are.

[mfwills]

Compare "If it walks like a duck and quacks like a duck, it's a duck."

In the context of this thread, if a person consistently acts stupidly, he has proven himself to be genuinely stupid.

In a related vein: "Ignorance can be fixed. Stupidity is forever."