
Diogenes Laërtius, vi. 54
Quoted by Diogenes Laërtius
Diogenes, 6.
The Lives and Opinions of Eminent Philosophers (c. 200 A.D.), Book 6: The Cynics
Diogenes Laërtius, vi. 54
Quoted by Diogenes Laërtius
“When Zeno was asked what a friend was, he replied, "Another I."”
Zeno, 19.
The Lives and Opinions of Eminent Philosophers (c. 200 A.D.), Book 7: The Stoics
“When the slave auctioneer asked in what he was proficient, he replied, "In ruling people."”
Diogenes Laërtius, vi. 74
Quoted by Diogenes Laërtius
Lives of the Ten Orators
Bartlett's Familiar Quotations, 10th ed. (1919)
“Asked from what country he came, he replied, "I am a citizen of the world."”
Diogenes, 6.
The Lives and Opinions of Eminent Philosophers (c. 200 A.D.), Book 6: The Cynics
Diogenes Laërtius, vi. 49
Quoted by Diogenes Laërtius
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Source: As quoted in Lasker's Chess Magazine https://en.wikisource.org/wiki/Lasker%27s_Chess_Magazine/Volume_1