The gem cannot be polished without friction, nor man perfected without trials.
(Other Authors and Sources)
Chinese proverb
Quoted in W. C. Wilson, ed., The Teacher's Visitor (1846).
The gem cannot be polished without friction, nor man perfected without trials.
(Other Authors and Sources)
Chinese proverb
Quoted in W. C. Wilson, ed., The Teacher's Visitor (1846).
