Playing "bop" is like playing Scrabble with all the vowels missing. Duke Ellington
With a gun barrel between your teeth, you speak only in vowels. Chuck Palahniuk
Bill Door was impressed. Miss Flitworth could actually give the word "revenue", which had two vowels and one diphthong, all the peremptoriness of the word "scum. Terry Pratchett
Etymology is a science in which vowels signify nothing at all, and consonants very little. Voltaire
For my convalescence, I had to exercise my voice only with vowels. It is a medical rule after a long loss of voice. Nana Mouskouri
[Footnote] The Phoenicians employed an alphabet of twenty-one consonants. They left no literature. You can't be literary without a few vowels. Will Cuppy