“All those men have their price.”
Prime Minister
Source: Reported in Bartlett's Familiar Quotations, 10th ed. (1919), stating "'All men have their price' is commonly ascribed to Walpole", and citing Coxe, Memoirs of Walpole, Vol. iv, p. 369: "Flowery oratory he despised. He ascribed to the interested views of themselves or their relatives the declarations of pretended patriots, of whom he said, 'All those men have their price'".
Help us to complete the source, original and additional information
Robert Walpole 8
British statesman 1676–1745Related quotes

“The gods have placed sweat as the price of all things.”
Perhaps a mistranslation of line 289 of Works and Days, actually:
: But in front of excellence the immortal gods have put sweat
Misattributed
Source: Public Finance - International Edition - Sixth Edition, Chapter 3, Tools of Normative Analysis, p. 44

"Barack Against the Boys," http://www.ilanamercer.com/phprunner/public_article_list_view.php?editid1=489 WorldNetDaily.com, March 13, 2009.
2000s, 2009

Napoleon : In His Own Words (1916)

Kant, Immanuel (1996), page 203
Anthropology from a Pragmatic Point of View (1798)

“And as in other things, so in men, not the seller, but the buyer determines the Price.”
The First Part, Chapter 10, p. 42
Leviathan (1651)

Source: (1776), Book I, Chapter VII, p. 69.

“Hope is the only good that is common to all men; those who have nothing else possess hope still.”
A Dictionary of Thoughts (1908) by Tryon Edwards, p. 234