"It is an old maxim of mine that when you have excluded the impossible, whatever remains, however improbable, must be the truth."
      Sir Arthur Conan Doyle (1859-1930); Scottish novelist (来源：英语交友 http://friends.englishcn.com)

"There are certain moments when we might wish the future were built by men of the past".
      Jean Rostand (1894-1977); French biologist, writer.

(来源：最老牌的英语学习网站 EnglishCN.com)