
Riyadh-as-Saliheen by Imam Al-Nawawi, volume 4, hadith number 690
Sunni Hadith
Source: Jack of Shadows (1971), Chapter 9 (p. 99)
Riyadh-as-Saliheen by Imam Al-Nawawi, volume 4, hadith number 690
Sunni Hadith
Referring to Napoleon III, in "Mistaken Lessons from the Past", The Listener (6 June 1963)
Source: On the Mystical Body of Christ, p.423
“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
The Philosopher
The Note-Books of Samuel Butler (1912), Part XI - Cash and Credit
Reb Saunders to Reuven Malter when talking about when Daniel was younger (p. 286)
The Chosen (1967)
Diogenes Laertius
Variant: How many things I can do without!
The grand old man of American psychiatry on what he has learnt about life (and death) in his still-flourishing career, The Independent http://www.independent.co.uk/news/people/profiles/irvin-d-yalom-interview-the-grand-old-man-of-american-psychiatry-on-what-he-has-learnt-about-life-10134092.html