Saya mau tau Karya utama dari Rudolf Christoph Eucken. Jelaskan dalam bahasa melayu

Die Lebensanschauungen der großen Denker (1890; 7th ed., 1907; 1918; Eng. trans., W. Hough and Boyce Gibson, The Problem of Human Life, 1909) (The Problem of Human Life as Viewed by the Great Thinkers)

Der Kampf um einen geistigen Lebensinhalt (1896) (The Struggle for a Spiritual Content of Life)

Der Wahrheitsgehalt der Religion (1901) (The Truth of Religion)

Grundlinien einer neuen Lebensanschauung (1907) (Life's Basis and Life's Ideal: The Fundamentals of a New Philosophy of Life)

Der Sinn und Wert des Lebens (1908) (The Meaning and Value of Life)

Geistige Strömungen der Gegenwart (1908; first appeared in 1878 as Die Grundbegriffe der Gegenwart; Eng. trans. by M. Stuart Phelps, New York, 1880) (Main Currents of Modern Thought)

Können wir noch Christen sein? (1911) (Can We Still Be Christians?, 1914))

Present Day Ethics in their Relation to the Spiritual Life (1913) (Deem Lectures given at New York University)

Der Sozialismus und seine Lebensgestaltung (1920) (Socialism: an Analysis (1922))