俞敏洪|企业家峰会演讲

Youtube 链接Bilibili链接

市级政府的银行债有上千亿人民币!

老俞演讲的本事不是盖的。总结以下几点: 政府管得太多,政策换得太频繁,企业家短视,社会缺乏信任。以上都是老话。爆点(5分11秒):市级政府的银行债有上千亿人民币。

“政府拿银行的钱,还有卖土地的钱,去投资基础设施。现在,政府手里没有太多的钱了,欠的债太多。政府的行政花费是极其巨大的,我们平均20个人养活一个官员。”

还有举了例子:一个生病的人(西门庆),不安心养病,反而吃药硬挺,最后死掉。很生动。

不过有些事,说起来简单,痛快,解气。真正要解决问题的时候,还是做不到所有人都满意的。

Thurston对数学的态度

来自mathoverflow

原问题:

My question is: what can one (such as myself) contribute to mathematics?
I find that mathematics is made by people like Gauss and Euler – while it may be possible to learn their work and understand it, nothing new is created by doing this. One can rewrite their books in modern language and notation or guide others to learn it too but I never believed this was the significant part of a mathematician work; which would be the creation of original mathematics. It seems entirely plausible that, with all the tremendously clever people working so hard on mathematics, there is nothing left for someone such as myself (who would be the first to admit they do not have any special talent in the field) to do. Perhaps my value would be to act more like cannon fodder? Since just sending in enough men in will surely break through some barrier.

Thurston的回答:

It’s not mathematics that you need to contribute to. It’s deeper than that: how might you contribute to humanity, and even deeper, to the well-being of the world, by pursuing mathematics? Such a question is not possible to answer in a purely intellectual way, because the effects of our actions go far beyond our understanding. We are deeply social and deeply instinctual animals, so much that our well-being depends on many things we do that are hard to explain in an intellectual way. That is why you do well to follow your heart and your passion. Bare reason is likely to lead you astray. None of us are smart and wise enough to figure it out intellectually.

The product of mathematics is clarity and understanding. Not theorems, by themselves. Is there, for example any real reason that even such famous results as Fermat’s Last Theorem, or the Poincaré conjecture, really matter? Their real importance is not in their specific statements, but their role in challenging our understanding, presenting challenges that led to mathematical developments that increased our understanding.

The world does not suffer from an oversupply of clarity and understanding (to put it mildly). How and whether specific mathematics might lead to improving the world (whatever that means) is usually impossible to tease out, but mathematics collectively is extremely important.

I think of mathematics as having a large component of psychology, because of its strong dependence on human minds. Dehumanized mathematics would be more like computer code, which is very different. Mathematical ideas, even simple ideas, are often hard to transplant from mind to mind. There are many ideas in mathematics that may be hard to get, but are easy once you get them. Because of this, mathematical understanding does not expand in a monotone direction. Our understanding frequently deteriorates as well. There are several obvious mechanisms of decay. The experts in a subject retire and die, or simply move on to other subjects and forget. Mathematics is commonly explained and recorded in symbolic and concrete forms that are easy to communicate, rather than in conceptual forms that are easy to understand once communicated. Translation in the direction conceptual -> concrete and symbolic is much easier than translation in the reverse direction, and symbolic forms often replaces the conceptual forms of understanding. And mathematical conventions and taken-for-granted knowledge change, so older texts may become hard to understand.

In short, mathematics only exists in a living community of mathematicians that spreads understanding and breaths life into ideas both old and new. The real satisfaction from mathematics is in learning from others and sharing with others. All of us have clear understanding of a few things and murky concepts of many more. There is no way to run out of ideas in need of clarification. The question of who is the first person to ever set foot on some square meter of land is really secondary. Revolutionary change does matter, but revolutions are few, and they are not self-sustaining — they depend very heavily on the community of mathematicians.

歌者夜行 – 周云蓬

2008年12月,读库。绿妖采访周云蓬。这里是《读书马上》的链接。周云蓬是一位盲人歌手。2011年Madison的老赵送了我一盘他的CD《中国孩子》。现在我跟那时老赵年岁一样大。

我们不是古墓中精美的瓷器,羞涩地等待别人去发掘。
我们将恬不知耻地
生长
发芽
抽穗
拔节

2008年9月29日下午两点,周云蓬来到海淀公园。下午四点他应该跟乐队一起为明天“摩登天空音乐节”的演出调音。他没吃午饭,想早点儿到,在公园旁边随便吃点儿,但公园附近没有饭馆,他说算了,坐到露天的白色塑料椅上,等着乐手们的到来。明天,这里将全是卖烤肉的、卖汉堡包的、买意大利面和咖喱饭的,可现在这里只有一张张空椅子。三点半,他给小河打电话,小河住北五环的北七家,还在地铁里。他又打给鼓手张蔚,张蔚也是“超级市场”乐队的鼓手,这会儿或许已经在海淀公园里面调音了?电话那头,张蔚说,他不知道下午四点就要调音,刚出门。张蔚住在五十公里开外的通州。

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2018-8-17 丑闻

范冰冰偷税。房祖名吸毒。陈冠希的艳照门。Michel Noir的私自挪用公款。Kevin Spacey的年轻疯狂。他们收到的惩罚,与他们之前的得到的回报成正比。而奈保尔的不忠并未影响他的名望。艺术家的特权。

我并不明白,为什么一个演员如果有丑闻了,那么她/他的形象和名字就要被封杀。不准提,好像没有这个人一样。范冰冰,张惠妹,柯震东……有这个必要么?难道看娱乐圈的都是小孩子?难道这样一来,正义就得到了保护?

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