Intelligent people who don't seem to realize that using vulgarities or obscenities in public reflects on them. It is crass, crude, and coarse. It shows that they have no taste, no class, and no respect for others.

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"What you hear in a great jazz band is the sound of democracy. “The jazz band works best when participation is shaped by intelligent communication.”
Harmony happens whenever different parts get to form a whole by means of congruity, concord, symetry, consistency, conformity, correspondence, agreement, accord, unity, consonance…….