Quine's Weak and Strong Indispensability Argument

Quine's views on indispensability arguments in mathematics are scrutinised. A weak indispensability argument is distinguished from a strong indispensability thesis. The weak argument is the combination of the criterion of ontological commitment, holism and a mild naturalism. It is used to refute nominalism. Quine's strong indispensability thesis claims that one should consider all and only the mathematical entities that are really indispensable. Quine has little support for this thesis. This is even clearer if one takes into account Maddy's critique of Quine's strong indispensability thesis. Maddy's critique does not refute Quine's weak indispensability argument. We are left with a weak and almost unassailable indispensability argument. This revised version was published online in August 2006 with corrections to the Cover Date.     

简析天人合德的理论意蕴

天人合一是中国哲学的根本特征之一 ,它在传统伦理思想中表现为天人合德。这一命题规定了传统道德的本体、道德价值的本原以及人的道德本性 ,是传统伦理思想最核心的理念和最根本的特征。它固然存在许多理论上的缺失 ,但又极富思辨性 ,对伦理学上的许多重大理论问题都提供了自己的解答。这对于我们今天探究这些问题 ,仍然具有启迪意义。     

儿童在因果知识领域内的选择性学习

儿童的选择性学习是目前认知发展领域的热点问题。儿童在因果知识领域内的选择性学习(即选择性因果学习)对于回答儿童如何获取知识这个经典问题具有重要意义。儿童的选择性因果学习表现在对他人解释的辨别、评估与采纳上。他们会主动向可靠的信息提供者寻求解释, 并在接收回答后表现出选择性跟进反应。对于他人的回答, 年幼儿童不仅能根据言语线索辨别出解释性陈述, 还能依据解释的结构特征选择更好的陈述加以采纳, 年长儿童甚至可以从不同模式的解释中灵活地学习更适宜的因果知识。未来研究应深入关注解释的其它特征在儿童选择性因果学习中的作用, 进一步探讨选择性因果学习的认知机制。     

On the capacity of attention: its estimation and its role in working memory and cognitive aptitudes

Working memory (WM) is the set of mental processes holding limited information in a temporarily accessible state in service of cognition. We provide a theoretical framework to understand the relation between WM and aptitude measures. The WM measures that have yielded high correlations with aptitudes include separate storage-and-processing task components, on the assumption that WM involves both storage and processing. We argue that the critical aspect of successful WM measures is that rehearsal and grouping processes are prevented, allowing a clearer estimate of how many separate chunks of information the focus of attention circumscribes at once. Storage-and-processing tasks correlate with aptitudes, according to this view, largely because the processing task prevents rehearsal and grouping of items to be recalled. In a developmental study, we document that several scope-of-attention measures that do not include a separate processing component, but nevertheless prevent efficient rehearsal or grouping, also correlate well with aptitudes and with storage-and-processing measures. So does digit span in children too young to rehearse.     

Rethinking our Maxims: Perceptual Salience and Practical Judgment in Kantian Ethics

Some contemporary Kantians have argued that one could not be virtuous without having internalized certain patterns of awareness that permit one to identify and respond reliably to moral reasons for action. I agree, but I argue that this insight requires unrecognized, farreaching, and thoroughly welcome changes in the traditional Kantian understanding of maxims and virtues. In particular, it implies that one's characteristic emotions and desires will partly determine one's maxims, and hence the praiseworthiness of one's actions. I try to show this by pointing out an instability in the Kantian understanding of maxims. On the one hand, maxims are thought of as consciously affirmed, subjective principles of action. On the other hand, Kantians claim that nothing counts as an action, nor as morally assessable, unless it has a maxim. One cannot take both thoughts seriously without implausibly constricting the range of behavior that counts as action, hence as morally assessable. This difficulty can be overcome, I suggest, by jettisoning the idea that maxims must be consciously affirmed, and by stressing the way in which maxims are grounded in the pruning and shaping of one's emotions and desires during socialization. This opens the door to a rich Kantian theory of virtue. It also raises questions about the scope and ground of our moral responsibility, which I address at the end of the paper.     

论中国古代德性主义经济伦理思想的萌芽

周代的“敬德保民”思想中包括了三个方面的经济伦理思想内涵：一、“无逸”的劳动伦理观和“孝养父母”的生产观;二、反对“独专于利”,主张利益分配的公正性;三、在生活方式上,主张“恭俭惟德”的消费观。这些思想具有德性主义的性质。     

How perceived changes in the ethical culture of organizations influence the well-being of managers: a two-year longitudinal study

The first aim of this study was to identify long-term patterns of ethical organizational culture based on the perceptions of 368 Finnish managers over a period of two years. The second aim was to investigate whether there is a difference in the long-term occupational well-being (burnout and work engagement) of managers exhibiting different patterns of ethical culture. Based on latent profile analysis, five different patterns of the strength of ethical culture were identified: moderate, high, increasing, decreasing, and low. The results show that managers exhibiting either the low or decreasing pattern of ethical culture experienced significant changes in their well-being over time. Decreasing or permanently low ethical culture was related to increased cynical attitudes towards work, and to decreased work engagement. On the positive side, stably high ethical culture was associated with enduringly high levels of well-being over time. In sum, low or decreasing ethical culture poses a risk to occupational well-being, whereas an organization with a culture that is perceived as permanently strong represents a favourable work environment.     

Facilitative effects of forgetting from short-term memory on growth of long-term memory in retardates

Competing explanations of the beneficial effect of spacing in retardate discrimination learning were tested. Three-trial multidimensional (“junk”) problems were presented concurrently to educable retardates with MAs over 8 years. The spacing interval spearating Trials 1 and 2 was filled with either zero, four, or eight interpolations, the interpolations being either trials on similar junk problems or repetitions of a single, well-learned dot-pattern discrimination. The principal findings were that: (1) while short-term retention of junk problems (as measured by Trial 2 performance) suffered greater interference from similar junk interpolations than from dot-pattern interpolations, long-term learning (as measured by a delayed Trial 3) was superior following the highly interfering junk problems; and (2) spacing facilitated learning only following highly interfering interpolations. These results are inconsistent with consolidation and rehearsal theories but support the prediction of the Sperber. Greenfield, and House (Journal of Experimental Psychology, 1973, 99) spacing model that forgetting from short-term memory facilitates retardate learning.     

Prenominal adjective order and visual discrimination in children

Preschool and third-grade children heard prenominal adjective phrases describing an object. Each phrase contained an article, two adjectives and a head noun. The phrases were constructed with either normal or inverted adjective order. Either after a one second delay or immediately following phrase presentation, Subjects were shown pictures of two objects. One of the objects (target) depicted the object described in the noun phrase. The other object differed from the target along the dimensions of color, size, or both color and size. The Subject's task was to select the target object. It was predicted that adjective order would influence perceptual strategies used by the Subjects in the visual discrimination task. Analysis of response time scores showed that adjective order interacted with the relevant discriminative stimuli in the discrimination task. These results were interpreted as support for hypotheses that suggest that linguistic organization can constrain conceptual processing involving nonlinguistic information. The effects of the delay condition provided additional evidence for these hypotheses plus support for an arousal hypothesis.     

Humanisation,democracy and trust: The democratisation of the school ethos

A democratic state is characterised by more than its particular principles and institutions; its citizens must have the democratic virtues and attitudes. One such important attitude is trust, as commentators on the current attempts to create democratic institutions in the USSR emphasise. The paper gives an account of social trust and also the important, though problematic, role that distrust plays in a democracy. Finally the paper considers how the school can instantiate social trust in its own ethos.