Atal Bihari Vajpayee

To ask questions can become the laziest and wobbliest occupation of a mind, but when you must yourself answer the problem that you have posed, you will meditate your question with care and frame it with precision.

I boldly assert, in fact I think I know, that a lot of friendships and connections absolutely depend upon a sort of shared language, or slang. Not necessarily designed to exclude others, this can establish a certain comity and, even after a long absence, re-establish it in a second.