I think we must quote whenever we feel that the allusion is interesting or helpful or amusing.

A man who is careful with his palate is not likely to be careless with his paragraphs.

My main recollection is of the work I had to do in order to eat

A bottle of wine begs to be shared; I have never met a miserly wine lover. The social emotions it generates are equidistant from the philatelist's solitary gloating and the football fan's gregarious hysteria.

One newspaper a day ought to be enough for anyone who still prefers to retain a little mental balance.

The German mind has a talent for making no mistakes but the very greatest.

A bottle of wine begs to be shared; I have never met a miserly wine lover.