User:DanielTom

—Horace, Epistles (20 BC), Book I, epistle ii, lines 40–41

—Jesus, in the Gospel of Luke (c. 90), 17:20–21 KJV

—John Donne, Devotions Upon Emergent Occasions (1624), 'Meditation 17'

—John Milton, Areopagitica (November 23, 1644)

—John Milton, Paradise Lost (1674), Book I, lines 254–255

—John Dryden, The Works of Virgil (1697), Aeneis, Book VI, lines 192–195

—Samuel Johnson, The Idler, No. 74 (September 15, 1759)

—Bertrand Russell, In Praise of Idleness and Other Essays (1935), Ch. 2: 'Useless' Knowledge

—Carl Sagan, "With Science on Our Side", ''Wash. Post'' (January 9, 1994)