Martin Luther Quote

Able, cautious, and experienced physicians, are gifts of God. They are the ministers of nature, to whom human life is confided; but a moment's negligence may ruin everything. No physician should take a single step, but in humility and the fear of God; they who are without the fear of God are mere homicides.

Translated by W. Hazlitt, The Table-Talk of Martin Luther (p. 383)