William Shakespeare Quotes about Perseverance
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William Shakespeare (1871). “The Dramatic Works of William Shakespeare: With Copious Glossarial Notes and a Biographical Notice”, p.623
'Troilus And Cressida' (1602) act 3, sc. 3, l. 150
William Shakespeare (2002). “Macbeth”, p.186, Barron's Educational Series
'Measure for Measure' (1604) act 4, sc. 3, l. [193]