« You employ stone, wood and concrete, and with these materials you build house and palaces. That is construction. Ingenuity is at work.
But suddenly, you touch my heart, you do me good. I am happy and I say: ‹This is beautiful.›That is architecture. Art enters in.
My house is practical. I thank you, as I might thank Railway engineers, or the Telephone service. You have not touched my heart.
But suppose that walls rise toward heaven in such a way that I am moved. I perceive your intentions. Your mood has been gentle, brutal, charming or noble. The stones you have erected tell me so. You fix me to the place and my eyes regard it. they behold something which expresses a thought. A thought which reveals itself without wood or sound, but solely by means of shapes which stand in a certain relationship to one another . These shapes are such that they are clearly revealed in light. The relationships between them have not necessarily any reference to what is practical or descriptive. They are a mathematical creation of our mind. They are the language of architecture. By the use of raw materials and starting from conditions more or less utilitarian, you have established certain relationships which have aroused my emotions. This is Architecture.»
Towards a New Architecture