“Russia was a slave in Europe but would be a master in Asia.”

Reported as frequently quoted but unverified in Respectfully Quoted: A Dictionary of Quotations (1989), which states, "it cannot be found in the official writings and pronouncements of Bismarck. It is possible that he said it, and it was passed on orally rather than being recorded, or that he expressed the sentiment in other terms and the idea took this form as others tried to quote him".
Disputed

Source: Star Maker (1937), Chapter XVI: Epilogue: Back to Earth (p. 187)

Written speech fragment presented by to the Chicago Veterans Druggist's Association in 1906 by Judge James B. Bradwell, who claimed to have received it from Mary Todd Lincoln. Collected Works, 2:532 http://quod.lib.umich.edu/cgi/t/text/text-idx?c=lincoln;cc=lincoln;view=text;idno=lincoln2;rgn=div1;node=lincoln2%3A547
Posthumous attributions

The He-Ancient, in Pt. V
1920s, Back to Methuselah (1921)

Maxim 657
Sentences, The Moral Sayings of Publius Syrus, a Roman Slave

Bacchæ l. 1028
the original sentence does not contain any verb

Obsessive gambling is now regarded as a mental illness - but, argues Theodore Dalrymple, does that not mean that the Disability Discrimination Act makes it illegal for bookies to discriminate against obsessive gamblers by banning them from their shops? http://www.socialaffairsunit.org.uk/blog/archives/001721.php (February 19, 2008).
The Social Affairs Unit (2006 - 2008)

—Published by Russky Arkhiv. Historical and literary collection (1890) Translation by Anatoly Liberman.
Original:
Прощай, немытая Россiя,
Страна рабовъ, страна господъ,
И вы, мундиры голубые,
И ты, имъ преданный народъ.
Быть можетъ, за стѣной Кавказа
Сокроюсь отъ твоихъ пашей,
Отъ ихъ всевидящаго глаза,
Отъ ихъ всеслышащихъ ушей.
Poems