“I warn you, be careful and consider the consequences of your vote.”
As quoted in His Brother's Blood: Speeches and Writings, 1838–64 https://web.archive.org/web/20160319090634/https://books.google.com/books?id=qMEv8DNXVbIC&pg=PA220#v=onepage&q&f=false (2004), edited by William Frederick Moore and Jane Ann Moore, p. 220
1860s, Speech (September 1860)
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Owen Lovejoy 37
American politician 1811–1864Related quotes
“Mr. Bibbit, you might warn this Mr. Harding that I'm so crazy I admit to voting for Eisenhower.”
Source: One Flew Over the Cuckoo's Nest (1962), Ch. 1
Context: Mr. Bibbit, you might warn this Mr. Harding that I'm so crazy I admit to voting for Eisenhower.
Bibbit! You tell Mr. McMurphy I'm so crazy I voted for Eisenhower twice!
And you tell Mr. Harding right back — he puts both hands on the table and leans down, his voice getting low — that I'm so crazy I plan to vote for Eisenhower again this November.

Turkish Wikipedia
https://quotestats.com/topic/attila-hun-quotes/
Prologue; Edward Van Sloan actually comes out from behind an on-screen curtain to deliver this speech.
Frankenstein (1931)
Source: How to Survive the End of the World as We Know It, Plume, New York (2009), p. 14.

The Ultimate Sin, written by Robert John Daisley, Ozzy Osbourne, John Osbourne, Jake Williams, Robert Daisley
Song lyrics, The Ultimate Sin (1986)

Robert Harris, "The Making of Neil Kinnock" (Faber and Faber, 1984), page 208.
Speech in Bridgend, Glamorgan, on Tuesday 7 June 1983. Thursday 9 June 1983 was polling day in the general election.
Context: If Margaret Thatcher is re-elected as prime minister on Thursday, I warn you. I warn you that you will have pain – when healing and relief depend upon payment. I warn you that you will have ignorance – when talents are untended and wits are wasted, when learning is a privilege and not a right. I warn you that you will have poverty – when pensions slip and benefits are whittled away by a government that won’t pay in an economy that can't pay. I warn you that you will be cold – when fuel charges are used as a tax system that the rich don't notice and the poor can't afford.I warn you that you must not expect work – when many cannot spend, more will not be able to earn. When they don't earn, they don't spend. When they don't spend, work dies. I warn you not to go into the streets alone after dark or into the streets in large crowds of protest in the light. I warn you that you will be quiet – when the curfew of fear and the gibbet of unemployment make you obedient. I warn you that you will have defence of a sort – with a risk and at a price that passes all understanding. I warn you that you will be home-bound – when fares and transport bills kill leisure and lock you up. I warn you that you will borrow less – when credit, loans, mortgages and easy payments are refused to people on your melting income.If Margaret Thatcher wins on Thursday, I warn you not to be ordinary. I warn you not to be young. I warn you not to fall ill. And I warn you not to grow old.

In Russian: Я считаю, что совершенно неважно, кто и как будет в партии голосовать; но вот что чрезвычайно важно, это - кто и как будет считать голоса.
Said in 1923, as quoted in The Memoirs of Stalin's Former Secretary http://www.panrus.com/books/details.php?langID=1&bookID=5905 (1992) by Boris Bazhanov [Saint Petersburg] (Борис Бажанов. Воспоминания бывшего секретаря Сталина). (Text online in Russian) http://lib.ru/MEMUARY/BAZHANOW/stalin.txt.
Variant (loose) translation: The people who cast the votes decide nothing. The people who count the votes decide everything.
Contemporary witnesses