He gains everyone's approval who mixes the pleasant with the useful.
Horace (BC 65-8) Latin lyric poet.
Utility is the great idol of the age, to which all powers must do service and all talents swear allegiance.
Friedrich Schiller (1759-1805) German dramatist, poet and historian.
We can forgive a man for making a useful thing as long as he does not admire it. The only excuse for making a useless thing is that one admires it intensely.
Oscar Wilde (1854-1900) Irish poet and dramatist.