Since knowledge is but sorrow’s spy, It is not safe to know.

Sir William Davenant (baptised 3 March 1606 – 7 April 1668), also spelled D’Avenant, was an English poet and playwright. Along with Thomas Killigrew, Davenant was one of the rare figures in English Renaissance theatre whose career spanned both the Caroline and Restoration eras and who was active both before and after the English Civil War and during the Interregnum.