The masterful epigrams and others, by Oscar Wilde

• Death must be so beautiful. To lie in the soft brown earth, with the grasses waving above one's head, and listen to silence. To have no yesterday, and no tomorrow. To forget time, to forgive life, to be at peace.
• The Canterville Ghost (1887).
  
• Keep love in your heart. A life without it is like a sunless garden when the flowers are dead. The consciousness of loving and being loved brings warmth and richness to life that nothing else can bring.
• Quoted by Alvin Redman in The Epigrams of Oscar Wilde (1952)

• Man is least himself when he talks in his own person. Give him a mask, and he will tell you the truth.

• A little sincerity is a dangerous thing, and a great deal of it is absolutely fatal.
  
  And more in : http://en.wikiquote.org/wiki/Oscar_Wilde