Letter of Faraday to Christian Friedrich Schönbein (19 September 1861); see also The Letters of Faraday and Schoenbein 1836-1862 (1899), edited by Georg W. A. Kahlbaum and Francis V. Darbishire, p. 349 http://www.archive.org/details/lettersoffaraday00fararich
“My son is 22 years old. If he had not become a Communist at 22, I would have disowned him. If he is still a Communist at 30, I will do it then.”
On being told his son had joined the Communist Party, as quoted in Try and Stop Me (1944) by Bennet Cerf
A statement similar in theme has also been attributed to Clemenceau:
A young man who isn't a socialist hasn't got a heart; an old man who is a socialist hasn't got a head.
As quoted in "Nice Guys Finish Seventh" : False Phrases, Spurious Sayings, and Familiar Misquotations (1992) by Ralph Keyes.
W. Gurney Benham in A Book of Quotations (1948) cites a statement by François Guizot as the earliest known expression of this general idea, stating that Clemenceau merely adapted the saying substituting socialiste for republicain:
N'être pas républicain à vingt ans est preuve d'un manque de cœur ; l'être après trente ans est preuve d'un manque de tête.
Not to be a republican at twenty is proof of want of heart; to be one at thirty is proof of want of head.
Variations on this general idea have also been attributed or misattributed to many others, most commonly Winston Churchill, who is not known to have actually made any similar statement.
Post-Prime Ministerial
Help us to complete the source, original and additional information
Georges Clemenceau 33
French politician 1841–1929Related quotes
" Groupware Bad http://www.jwz.org/doc/groupware.html" (essay)
Game of thrones with world chess champion Viswanathan Anand
Better Nutrition magazine (March 2004) http://jennifer-beals.com/images/press_images/better_nutrition/better4.jpg.
Source: Inside the Third Reich: Memoirs (1970), p. 22
“He undertook to disparage my age when he himself had appointed his ten-year-old son.”
Referring to the Emperor Macrinus and his declaration of his son Diadumenianus to be '"Caesar". The head of Diadumenianus was presented to Elagabalus as a trophy. As quoted in Dio's Roman History (1955), as translated by Earnest Cary, p. 439
With the century, vol. 3