Hegel's Encyclopaedia Logic constitutes the foundation of the system of philosophy presented in his Encyclopaedia of the Philosophical Sciences. Together with his Science of Logic, it contains the most explicit formulation of his enduringly influential dialectical method and of the categorical system underlying his thought. It offers a more compact presentation of his dialectical method than is found elsewhere, and also incorporates changes that he would have made to the second edition of the Science of Logic if he had lived to do so. This volume presents it in a new translation with a helpful introduction and notes. It will be a valuable reference work for scholars and students of Hegel and German idealism, as well as for those who are interested in the post-Hegelian character of contemporary philosophy.

黑格尔(1770～1831)，德国古典唯心主义辩证法哲学的集大成者，彻底的客观唯心主义者。他主张，理念是第一性的，它以纯概念的形式在逻辑学中不断发展，然后理念外化成为自然界，最后又在精神哲学的各门科学中回复到理念自身。这样，他建立了一个以理念为基础的、包括了一切科学的庞大的客观唯心主义体系。他在哲学史上的主要贡献是，把矛盾看作一切事物的真理与本质，论述了辩证法就是对立面的统一。他把整个的自然界、人类社会、人的思维都看作处于普遍联系与发展变化中。其辩证法的不彻底性在于，他的作为“绝对真理”的哲学体系是绝对的、永恒不变的。马克思和恩格斯在创立唯物辩证法时，批判地吸取了黑格尔哲学中的辩证法这一合理内核。主要著作有《精神现象学》、《逻辑学》、《哲学史讲演录》、《哲学全书纲要》等。后者分为“逻辑哲学”、“自然哲学”、“精神哲学”三部分，是对其全部哲学体系的阐述。