But in the perspective of postmodernism , the unavoidable complexity of " person to person " life system and multiplicity of significance determine the uncertainties of instruction , and the modern instruction ideas ignore or suppress these factors deliberately . therefore , instruction should get back to its complexity , represented as uncertainty , non - linear cause and effect relations and irreversibility 但在后现代思想视野下， “人?人”生命系统不容回避的复杂性和意义的多元决定了教学中充满不确定因素，现代教学理念只是人为地忽视或抑制了这些因素，因而教学应恢复其复杂的本来面目，即具有不确定性、非线性因果性和不可逆性。
This paper expounded of the connotation of causality and causal anomaly ; it is pointed out that with closed systems the existence of tcahyons is compatible within the causality requirements of the theory ofrelativity , but the possibility of experimentation with tachyons beingsuitable for signaling must be excluded 摘要本文阐述了物理学中因果性和因果反常的涵义，指出在闭合系里快子的存在可以和相对论因果性要求一致，但是适合作信号的快子实验的可能性必须被排除。
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Hume ' s view is of important significance for his whole philosophy system : firstly , his investigation into causality expounds and proves the absurdity of metaphysics , and makes necessary preparations for his ultimate aim of philosophy which is to build up a system of science of human nature ; secondly , from his view of causation , hume draws the central essential of his theory of knowledge which is an important part of his system ; thirdly , flume ' s investigation into causality moves a further step to his view against abstraction and his resistance of ontological problems 这一理论对其整个哲学体系的构建具有重要意义：首先，通过对因果性问题的考察，休谟论证了形而上学的荒谬性，为达到其哲学的最终目的即建立人性科学体系作了必要准备；其次，通过因果观，休谟引出了作为自己哲学体系的一个重要组成部分即知识论的中心内容；再次，休谟还通过因果观进一步论证了他的反抽象论及对本体论问题的“存疑” 。
