Zero

“Unthrifty loveliness, why dost thou spend
  Upon thy self thy beauty's legacy?
  Nature's bequest gives nothing, but doth lend,
  And being frank she lends to those are free:
  Then, beauteous niggard, why dost thou abuse
  The bounteous largess given thee to give?
  Profitless usurer, why dost thou use
  So great a sum of sums, yet canst not live?
  For having traffic with thy self alone,
  Thou of thy self thy sweet self dost deceive:
  Then how when nature calls thee to be gone,
  What acceptable audit canst thou leave?
    Thy unused beauty must be tombed with thee,
    Which, used, lives th' executor to be.”
― William Shakespeare, Shakespeare's Sonnets

“To observe attentively is to remember distinctly.”
― Edgar Allan Poe

“Many that live deserve death. And some that die deserve life. Can you give it to them? Then do not be too eager to deal out death in judgement. For even the very wise cannot see all ends.”
― J.R.R. Tolkien, The Lord of the Rings

“A dreamer is one who can only find his way by moonlight, and his punishment is that he sees the dawn before the rest of the world.”
― Oscar Wilde