He was strongly influenced by Søren Kierkegaard in his early development, but later became a positivist, retaining and combining with it the spirit and method of practical psychology and the critical school.

His best-known work is perhaps his Den nyere Filosofis Historie (1894), translated into English from the German edition (1895) by B.E.

Meyer as History of Modern Philosophy (2 vols., 1900), a work intended by him to supplement and to correct that of Hans Brøchner to whom it is dedicated.

[2] Among Høffding's other writings, most of which have been translated into German, are Den engelske Filosofi i vor Tid (1874); Etik (1876); Psychologi i Omrids paa Grundlag af Erfaring (ed.

1892); Psykologiske Undersøgelser (1889); Charles Darwin (1889); Kontinuiteten i Kants filosofiske Udviklingsgang (1893); Sören Kierkegaard als Philosoph (1896); Det psykologiske Grundlag for logiske Domme (1899); Rousseau und seine Philosophie (1901); Mindre Arbejder (1899).