
Aristippus, 4.
The Lives and Opinions of Eminent Philosophers (c. 200 A.D.), Book 2: Socrates, his predecessors and followers
Of Agesilaus the Great
Laconic Apophthegms
Aristippus, 4.
The Lives and Opinions of Eminent Philosophers (c. 200 A.D.), Book 2: Socrates, his predecessors and followers
“When asked what learning was the most necessary, he said, "Not to unlearn what you have learned."”
Antisthenes, 4.
The Lives and Opinions of Eminent Philosophers (c. 200 A.D.), Book 6: The Cynics
“When I had asked why they were taking English, a boy said: "To help us in real life."”
Part I, ch. 5 (Sylvia Barrett)
Up the Down Staircase (1965)
Borejza, Tomasz (January 2018): Trochę bakterii nie zaszkodzi https://www.tygodnikprzeglad.pl/troche-bakterii-zaszkodzi/. Przegląd (4/2018): pp. 54–55.
Speech http://hansard.millbanksystems.com/commons/1964/dec/03/schedule-7-commencement-transitional in the House of Commons (3 December 1964)
1960s
Source: When Day is Done (1921), A Father's Wish, stanzas 1 and 2.