Be truthful, nature only sides with truth.
Changes in the traditional way of building are only permitted if they are an improvement. Otherwise stay with what is traditional, for truth, even if it be hundreds of years old has a stronger inner bond with us than the lie that walks by our side.
The house has to please everyone, contrary to the work of art which does not. The work is a private matter for the artist. The house is not.
The work of art shows people new directions and thinks of the future. The house thinks of the present.
The law courts must appear as a threatening gesture toward secret vice. The bank must declare: here your money is secure and well looked after by honest people.