You know what they say: 'variety is the spice of life'. [=life is more interesting and enjoyable when you do different things]
The talks covered a wide/great 'variety of' topics. [=the talks covered many different topics]
I was surprised by the 'variety' of the choices that were available.
(..) a very complicated woman, you know-- Whoa, whoa, whoa, whoa, what is all this? I have prepared a variety of snack foods all beginning with the letter "F" that we can eat while watching the Flyers game, plus... (..)2016 TvShow: Bones Title: The Murder of the Meninist Season: 11 Episode 12