
When a painter starts to paint, its his free will as to what he wants to paint and how he wants to paint it. He is free to express his perception of reality, his view of the world. He has his colours and his brush to vent his expression. He defines the 'problem' to his fancy and attains a solution he wishes.
As we start to put restrictions (rules) to art, the art starts to move away from being an art and more of a science.

Architecture is an art form confined by a set of rules.
An architect has the freedom to play with spaces. Solids and voids, light and shadows, matrials and texture are all tools available to him to express himself. However he is restricted by techonology and constructability, cost, utility and the wishes of the client.
The scientific minded could say that the 'art' in architecture is restricted within a range - and my answer would be that even within that range there infinite possible perceptions and their infinite solutions.
- Van Gogh Gallery: 'Starry Starry Night'
by Vincent Van Gogh.
- Westminister architecture school
