There is, as every schoolboy knows in this scientific age, a very close chemical relation between coal and diamonds. It is the reason, I believe, why some people allude to coal as "black diamonds." Both these commodities represent wealth; but coal is a much less portable form of property.
Joseph ConradBut his soul was mad. Being alone in the wilderness, it had looked within itself and, by heavens I tell you, it had gone mad.
Joseph ConradTo be busy with material affairs is the best preservative against reflection, fears, doubts ... all these things which stand in the way of achievement. I suppose a fellow proposing to cut his throat would experience a sort of relief while occupied in stropping his razor carefully.
Joseph Conrad