永仁/文化楚雄 在线下载 pdf mobi 2025 epub 电子版
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精彩短评:
作者:氧气 发布时间:2021-04-21 14:07:46
浅显易懂,又很有趣,适合孩子的艺术书册~ A4开本,硬壳精装。
作者:東郷柏 发布时间:2017-12-19 21:53:47
一个敢撕破文明社会虚假道德面具的蛮子 一头与肉体和灵魂厮杀到最后的野兽 一个笃信力量而缺乏傲慢的现实主义者 一个在惊涛骇浪中屹立不倒的船长 一个读莎士比亚 斯宾塞而不相信灵魂永久的怪物 一个忠于自己的拥有绝对意志的混蛋 在没有所谓道德 法律 人性约束的自然社会里他将强者的本性展现的淋漓尽致;只有在极端的自然环境中人的灵魂才能得到彻底自由地解放 而魂归大海就是海狼最好的结局;那些成天把狼性挂在嘴边的家伙大都是连用自己的双脚都站不起来的废物;暗黑版老人与海;结局太仓促
作者:ly的读享生活 发布时间:2019-06-01 18:52:34
精简要论。综合了老爷子的主要理论,社会进化学、利他主义、真社会性、先备学习。大家小书,流畅好读。
作者:向花尋 发布时间:2020-04-23 17:58:30
今天是世界讀書日,據說羅志祥分手的消息上了八卦頭條,人家讀書他分手,難怪樣子長得醜。
移屏至朋友圈,看到老同學發的一則書店帖子。讀書時代常去的老書店不在了,『精典』二字淚眼汪汪地時刻提醒著我們:精讀典範;額眉異端,詠梅也在呼籲:人醜就要多讀書,飯飽就要多散步。
看得出來,知識的遇知,歲月不曾搖擺。
回看《文待詔題跋》,是文徵明繼書畫大成之後的又一招牌,『花發上林,月滉淮水』式的飄逸,比興間的文字知交,告示眾人,臨帖是最美的儀態,閱讀是最騷的腰肢。
作者:找寻椅子大冒险 发布时间:2016-03-30 14:36:18
分析起大摩羯来头头是道一针见血,看到中间好几次差点拍掌叫好迎风流泪。买这本书的初衷是想送某摩羯,但现在正在冷战,我自己倒先看完了呵呵,这场冷战也许这辈子都不会结束了。据说下本书是《千万不要认识水瓶座》,那什么时候出《千万不要认识天蝎座》?
作者:Maymay 发布时间:2021-10-10 19:35:52
同样书名的竟有一百来本…
深度书评:
Look up black swans flying over
作者:CG 发布时间:2021-12-19 11:39:43
It’s a brilliant book, notwithstanding requiring basic knowledge of statistics which makes reading threshold high and contemplating process rigorous. The major six chapters illustrated coherent elaboration while the foreword from Taleb and afterward by author are splendid. Both professional investors and amateurs could be enlightened with logical and practical analytical framework, as it is clarified this is not a “How to” book but a “Why to” and “Why not to” book.
The author splashed his wits, somehow showed off, throughout all chapters, for the ambition to drive the investing, not dumb luck, or intuition, or manipulating or under-table or inside trading, to a science level and ultimately to escalate it as life philosophy.
“Cost-effective risk mitigation”, described as “safety haven”, is the hardcore of writer’s investing strategy, combining portfolios to raise wealth by obliterating risks OVER TIME, which overthrew the orthodox dogma of school finance: high returns always associating high risks(volatile assets). For investors, the greater risk dilemma they have been facing and tackling is “ too much risk will cost wealth while no enough risk will also cost wealth.” Then the right strategy is to find out a methodology to get the right payoffs.Don’t predict and don’t do grandiose forecasts with probability.
Principle No.1 is investing is a sequential process through time, ie payoffs compound. Principle No.2 is the only one explicit goal of investing is to maximize wealth over time-CAGR.
Starting from rolling dice, inductive and deductive are two reasoning approaches applied to analyze and validate the hypothesis by using “Modus tollens” (syllogism of denying the consequent).
The concept came from the mathematical geniuses of prestigious Bernoulli family. After his uncle’s “law of large numbers” and his father’s “calculus of variations”, Daniel Bernoulli published “Hydrodynamica” with the famous Bernoulli principle in 1738, and ignited the solution of risk mitigation by tackling “the Saint Petersburg paradox”.
“Emolumentum Medium”, later seeping into economics in the form of “diminishing marginal utility”, was defined in mathematical terms as the average of logarithmic potential total outcome of BEV=e(EM), which gives an explicit index of how much (the fair price) you should wager in the game.
The fundamental principle of BEV is the geometric average show meaningful multiplicative effects, the essential for measurement of the value of risky proposition, than arithmetic one does. With this geometric views, a right risk mitigation strategy like the insurance prevents investment from plunging down the logarithmic curve! Arithmetic returns are false hope and the truth lies in geometric returns.
“ The first Bernoulli principle, if not violated, prevents airplanes from crashing; and the BEV, if not violated, likewise prevents portfolios from crashing.“
After Bernoulli, the author went to Nietzsche and Schroedinger for two life/investment/dice rolling scenarios: eternal recurrence where N=1 versus multiple universes with innumerable results. We need to understand both perspectives of those two opposing “dice demons” : when N=o-o, you guaranteed arithmetic average return-a delusion; for one and only path, you get what you get NOT what you expect. In this N=1 situation, geometric average(median) will show crystal real outcome with multiplicative effect.
The portfolio construction is unfolded as “Xs and Os Profile; the Kelly Criterion” to dig out risk-mitigation payoff: by improving Geom Avg through different combinations to have a better gain/cost effectiveness.
Following this methodology, three safe havens model have been testified as “store of value”-fixed return in time, “alpha”-positive return in crash and “insurance”-a crash payoff, comparing to the samples of past 120-year-return (1900-2020) of SPX. (Rolling a d120 die to get 25 annual returns randomly, CAGR Median 9.5%, 5th percentile 2.7%). With bootstrapping strategies, the final scoreboard does show insurance profile in right allocation size overtakes SPX by 0.5%.
Also benchmarking SPX as a diagonal baseline, the cost-effectiveness analysis (CEA) can be done on the plane, where arithmetic cost is X axis and geometric effect is Y axis. With the visibility of net portfolio effect, the risk-mitigation tension and trade off are transparently measured.
“Offenses wins games and defense wins championships.” Overall, cost-effective safe haven investing strategy is agnostic investing: irrelevant to market up or down. Your risk-mitigated portfolios will maximize wealth returns no matter how many black swans fly over.
【转】丁忱:《尔雅》概说
作者:哲夫成城 发布时间:2021-08-12 09:58:25
【作者简介】武汉大学文学院的丁忱教授是1981年中文系招收的第一位博士生,师从著名学者黄焯教授。黄焯是谁,今天知道的不多了。他是黄侃先生的侄儿兼弟子,而黄侃先生则是章太炎先生的弟子。也就是说,丁忱先生,乃“章黄学派”的第四代传人。著有《〈尔雅〉、〈毛传〉异同考》,主编《黄焯文集》。
据说,丁忱先生就要博士答辩的时候,导师黄焯一病不起,无法主持。丁先生跪在床前请安问策,焯老细语叮嘱曰:勿急,你须去北师大答辩,主辩导师是陆宗达,是我师弟,你的师叔。(章黄学派一花开二叶,北有陆宗达,南有黄焯)我这已经修书一封,你带去给他,他必不会为难于你。于是丁先生就去北京见了师叔,陆先生叮嘱曰:我主持答辩,另外请来的四位导师,你只需提防其中一位,他是《中国语文》的老编辑,特别刁钻古怪,独他,不会给我情面。答辩开始,陆先生主持曰:丁忱乃吾师兄收山弟子,师兄病沉,自恐不久,托我代他主持。我们同门,不便多说,就请各位提问吧。丁先生的博士论文是《〈尔雅〉、〈毛传〉异同考》。果然,其他三位导师随便几问,轻松答毕。只有《中国语文》那位先生发问——《诗大序》与《尔雅》有何关系——顿时把丁先生问住了。丁先生冥思苦索,忽然想起陆先生的提示,顿时豁然开朗。回去答曰:诗大序与尔雅并无一点关系。所有导师皆笑了,因为一般人多会被误导去瞎扯各种关系,那就反而上当。于是,答辩通过。
【延伸阅读】
董恩林:《尔雅郭注》版本考(
https://book.douban.com/review/14868563/
)
野間文史:邢昺《爾雅疏》研究(
https://book.douban.com/review/14121825/
)
杨康:郭璞传笺证(
https://book.douban.com/review/14252690/
)
李嘉翼:邵晋涵《尔雅正义》补郭谫论(
https://book.douban.com/review/13319714/
)
王其和:郝懿行《尔雅义疏》考论(
https://book.douban.com/review/13785179/
)
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