“The fear of speculation, the ostensible rush from the theoretical to the practical, brings about the same shallowness in action that it does in knowledge. It is by studying a strictly theoretical philosophy that we become most acquainted with Ideas, and only Ideas provide action with vigour and ethical meaning.”
Die Scheu vor der Spekulation, das angebliche Forteilen vom bloß Theoretischen zum Praktischen, bewirkt im Handeln notwendig die gleiche Flachheit wie im Wissen. Das Studium einer streng theoretischen Philosophie macht uns am unmittelbarsten mit Ideen vertraut, und nur Ideen geben dem Handeln Nachdruck und sittliche Bedeutung.
Vorlesungen über die Methode des akademischen Studiums ( Seventh Lecture http://www.zeno.org/Philosophie/M/Schelling,+Friedrich+Wilhelm+Joseph/Vorlesungen+%C3%BCber+die+Methode+des+akademischen+Studiums/7.+%C3%9Cber+einige+%C3%A4u%C3%9Fere+Gegens%C3%A4tze+der+Philosophie,+vornehmlich+den+der+positiven+Wissenschaften), Friedrich Wilhelm Joseph von Schellings sämmtliche Werke, V, 1859, p. 277 http://babel.hathitrust.org/cgi/pt?q1=%22nur%20Ideen%20geben%22;id=uva.x002624295;view=1up;seq=301;start=1;sz=10;page=search;num=277.
On University Studies (1803)
Original
Die Scheu vor der Spekulation, das angebliche Forteilen vom bloß Theoretischen zum Praktischen, bewirkt im Handeln notwendig die gleiche Flachheit wie im Wissen. Das Studium einer streng theoretischen Philosophie macht uns am unmittelbarsten mit Ideen vertraut, und nur Ideen geben dem Handeln Nachdruck und sittliche Bedeutung.
On University Studies (1803)
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Friedrich Wilhelm Joseph Schelling 12
German philosopher (idealism) 1775–1854Related quotes

All we know of science or of religion comes from philosophy. It lies behind and above all other knowledge we have or use.
My Philosophy (1965) http://www.foundingchurchdc.org/dc/ref/philo/index.htm.

Source: "Evolutionary Socialism" (1899) https://www.marxists.org/reference/archive/bernstein/works/1899/evsoc/index.htm, Chapter III, The Tasks and Possibilities of Social Democracy
Source: 1950s, General Systems Theory - The Skeleton of Science, 1956, p. 201, quoted in: John P. Cole, Cuchlaine A. M. King (1969) Quantitative geography: techniques and theories in geography. p. 575

System of Transcendental Philosophy (1800)

Source: Investigations into the Method of the Social Sciences, 1883, p. 58

Choruses from The Rock (1934)
Context: O perpetual revolution of configured stars,
O perpetual recurrence of determined seasons,
O world of spring and autumn, birth and dying!
The endless cycle of idea and action,
Endless invention, endless experiment,
Brings knowledge of motion, but not of stillness;
Knowledge of speech, but not of silence;
Knowledge of words, and ignorance of The Word.
All our knowledge brings us nearer to our ignorance,
All our ignorance brings us nearer to death,
But nearness to death no nearer to God.
Where is the Life we have lost in living?
Where is the wisdom we have lost in knowledge?
Where is the knowledge we have lost in information?
The cycles of Heaven in twenty centuries
Brings us farther from God and nearer to the Dust.

On Practice (1937)