“To be ignorant of one's ignorance is the malady of the ignorant.”
Source : Amos Bronson Alcott (1877). “Table-talk”
Andrea Bocelli
Tenor
Barbra Streisand
Singer-songwriter
Charlotte Church
Singer-songwriter
Connie Talbot
Singer
David Foster
Musician
Howie Mandel
Comedian
Placido Domingo
Conductor
Sarah Brightman
Actress
Susan Boyle
Singer