...I do not think that your stories should be full of scienceand nothing else, but they should at least observe knownscientific facts... 
Various 「Astounding Stories, August, 1931」
... “Give me that helmet, my friend, for either I know little of adventures, or what I observe yonder is one that will, and does, call upon me to arm myself...
Miguel de Cervantes 「The History of Don Quixote, Volume II., Complete」
...Sancho, however, happening to observe the signal of the white cloth, exclaimed, “May I die, if my master has not overcome the wild beasts, for he is calling to us...
Miguel de Cervantes 「The History of Don Quixote, Volume II., Complete」
... “And that’s a good observe, David,” said Alan...
Robert Louis Stevenson 「Kidnapped」
...“But the little man cried to me to run, and indeed I thought it was a good observe, and ran...
Robert Louis Stevenson 「Kidnapped」
...Marguerite could not see the newcomers, but, through a hole in one of thecurtains, she could observe one portion of the room below...
Baroness Orczy 「The Scarlet Pimpernel」
... Moreover, you will observe that I had honourably kept my word, and not fired till they did...
Anthony Hope 「The Prisoner of Zenda」
... “Look you, sir: because we must observe the common and usual methods of trial, I must interrupt you now...
Rafael Sabatini 「Captain Blood」
... Observe it now at work in the affairs of Captain Blood and of some others...
Rafael Sabatini 「Captain Blood」
... “His humour, like your own, you will observe, is acrid,” said Pantaloon...
Rafael Sabatini 「Scaramouche」
...He can go to the devil; and please observe that I don’t permit you to interfere...
Rafael Sabatini 「Scaramouche」
...“You observe that he has been here today?”...
John Buchan 「Mr. Standfast」
... “Allow me to observe, my lord,” said Buckingham, with an irritation of manner which he did not seek to disguise, “you detain these ladies, and you have no right to do so...
Alexandre Dumas, Pere 「Ten Years Later」
... “Moreover, I would beg you to observe, monsieur, that the term ‘barrack’ is a highly objectionable one!” added Manicamp, graciously...
Alexandre Dumas, Pere 「Ten Years Later」
... “You observe, however, that he has changed his tactics...
Alexandre Dumas, Pere 「Ten Years Later」
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