Human reason, with all its wisdom, can bring it no further than to instruct people how to live honestly and decently in the world, how to keep house, build, etc., things learned from philosophy and heathenish books.
 Martin Luther, Table Talk (1566). copy citation

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Author Martin Luther
Source Table Talk
Topic wisdom philosophy
Date 1566
Language English
Reference
Note Translated by William Hazlitt
Weblink http://www.ntslibrary.com/PDF%20Books/Luther%20Table%20Talk.pdf

Context

“God alone, through his Word, instructs the heart, so that it may come to the serious knowledge how wicked it is, and corrupt and hostile to God. Afterwards God brings man to the knowledge of God, and how he may be freed from sin, and how, after this miserable, evanescent world, he may obtain life everlasting. Human reason, with all its wisdom, can bring it no further than to instruct people how to live honestly and decently in the world, how to keep house, build, etc., things learned from philosophy and heathenish books. But how they should learn to know God and his dear Son, Christ Jesus, and to be saved, this the Holy Ghost alone teaches through God’s Word; for philosophy understands naught of divine matters. I don’t say that men may not teach and learn philosophy;” source