かこうありといえどもくらわずんばそのうまきをしらず

嘉肴ありと雖も食らわずんばその旨きを知らず

one cannot understand even a holy man's teachings without study; one cannot know the abilities of a great man without putting him to use; one cannot know the delicious taste of fine food without eating it

N3Expression
Expression
one cannot understand even a holy man's teachings without studyone cannot know the abilities of a great man without putting him to useone cannot know the delicious taste of fine food without eating it