“The great cause of revolutions is this, that while nations move onward, constitutions stand still.”
Speech on Parliamentary Reform. http://www.gutenberg.org/etext/2170 (1831)
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Thomas Babington Macaulay, 1st Baron Macaulay 101
British historian and Whig politician 1800–1859Related quotes

Source: "Mr. Liao Zhongkai and Worker and Peasant Policy" https://www.marxists.org/reference/archive/liu-shaoqi/1926/09/26.htm (26 September 1926)

29-Jun-2005, Radio Derby
I think he's covered all the angles there.

“There is no resting place for a nation or a people on their onward march.”
On his becoming the first President of India after the constitution was adopted
Source: Presidents of India, 1950-2003, p. 11

Presidential campaign (April 12, 2015 – 2016), (July 28, 2016)
“All motion is relative. Maybe it's you who've moved away by standing still.”
Source: Inherit the Wind