Day 79 · Tue, Jan 5, 2027 · Five editions

Tue, Jan 5, 2027

Five emails a day: 00:00 Night / 07:00 Morning / 12:00 Noon / 17:00 Evening / 21:00 Figures

00:00 Night · Health · Chinese classics

管仲(舊題):Guanzi, 第64篇形勢解, Entry 2

管仲(舊題)《管子》· 第64篇形勢解 · Character · Health · Philosophy · Leadership

淵者,衆物之所生也,能深而不涸,則沈玉至。主者,人之所仰而生也,能寬裕純厚而不茍忮,則民人附。父母者,子婦之所受教也,能慈仁教訓而不失理,則子婦孝。臣下者,主之所用也,能盡力事上,則當於主。子婦者,親之所以安也,能孝弟順親,則當於親。故淵涸而無水,則沈玉不至。主苛而無厚,則萬民不附。父母暴而無恩,則子婦不親。臣下墮而不忠,則卑辱困窮。子婦不安親,則禍憂至。故淵不涸則所欲者至,涸則不至。故曰:「淵深而不涸,則沈玉極。」

Source: https://zh.wikisource.org/wiki/%E7%AE%A1%E5%AD%90/%E7%AC%AC64%E7%AF%87%E5%BD%A2%E5%8B%A2%E8%A7%A3
第64篇形勢解·第2则

This is a direct reading: the original and source are kept; commentary will be added later.

Today's question

What does this passage say about your body or mood today?

07:00 Morning · Health · Chinese classics

洪应明:Caigentan, Entry 215

洪应明《菜根譚》· 第215则 · Health · Learning

善讀書者,要讀到手舞足蹈處,方不落筌蹄; 善觀物者,要觀到心融神洽時,方不泥迹象。

Source: https://zh.wikisource.org/wiki/%E8%8F%9C%E6%A0%B9%E8%AD%9A
第215则

This is a direct reading: the original and source are kept; commentary will be added later.

Today's question

What does this passage say about your body or mood today?

12:00 Noon · Investing · Modern investor letters

Warren Buffett:Berkshire 1984 Letter, Excerpt 1

Warren Buffett《Berkshire Hathaway 1984 Letter to Shareholders》· 1984 Chairman's Letter · Investing

Our gain in net worth during 1984 was $152.6 million, or $133 per share. This sounds pretty good but actually it’s mediocre. Economic gains must be evaluated by comparison with the capital that produces them. Our twenty-year compounded annual gain in book value has been 22.1% (from $19.46 in 1964 to $1108.77 in 1984), but our gain in 1984 was only 13.6%.

Source: https://www.berkshirehathaway.com/letters/1984.html
1984 Chairman's Letter, excerpt 1

This is a direct reading: the original and source are kept; commentary will be added later.

Today's question

Does this passage change one judgment about money or risk today?

17:00 Evening · Career · Chinese classics

司馬光:Zizhi Tongjian, Volume 200, Entry 13

司馬光《資治通鑑》· 卷200·高宗天皇大聖大弘孝皇帝上之下顯慶元年(丙辰,公元六五六年) · Leadership · Cognition · Action · Character

李義府恃寵用事。洛州婦人淳于氏,美色,系大理獄,義府屬大理寺丞畢正義枉法出之,將納為妾,大理卿段寶玄疑而奏之。上命給事中劉仁軌等鞫之,義府恐事洩,逼正義自縊於獄中。上知之,原義府罪不問。

Source: https://zh.wikisource.org/wiki/%E8%B3%87%E6%B2%BB%E9%80%9A%E9%91%91/%E5%8D%B7200
卷200·高宗天皇大聖大弘孝皇帝上之下顯慶元年(丙辰,公元六五六年)·第13则

This is a direct reading: the original and source are kept; commentary will be added later.

Today's question

What does this passage say about how you work today?

21:00 Figures · Investing · Modern investor letters

Benjamin Graham:Diversification and Margin of Safety

Benjamin Graham《The Intelligent Investor》· Chapter 20, Margin of Safety as the Central Concept of Investment · Investing · Decision · Wealth

Diversification is an established tenet of conservative investment. By accepting it so universally, investors are really demonstrating their acceptance of the margin-of-safety principle, to which diversification is the companion.

Source: https://archive.org/details/the-intelligent-investor-benjamin-graham_202508
Chapter 20, pp. 518–519, paragraph beginning “There is a close logical connection between the concept of a safety margin and the principle of diversification”

Reading

Diversification is the practical companion of the margin-of-safety principle.

Context

Graham treated diversification not as mere “buying more names” but as the companion of the margin-of-safety principle. Even a margin of safety cannot prevent any single security from turning out badly; spreading enough independent commitments makes the aggregate result more reliable. The logic resembles insurance underwriting.

Today's question

Could one wrong judgment in your portfolio be catastrophic—and is diversification protecting you or diluting your edge?