" It depends what you mean by 'is' "

-Bill Clinton, on trial

But such phrases ("it depends what you mean by ...") were also made famous in the WWII era by the fascinating british philosopher and broadcaster CEM Joad (one of those philosophers who were ahead of Anthony Flew in terms of both time and level of commitment, in the realm of religious conversion. )

I S ?

But what does "is" mean anyway? If it means something like "exists" as I assume off the top of my head, then given the number of related words, it is amazing how often we talk about ontology in everyday speech, chatter and gossip. Philosophy is in fact for everyone, it's just that everyone doesn't know it.