Economics as an Art

Science is a theoretical aspect whereas Art is a practical aspect. In economics we study consumption, production, public finance etc. which provide practical solutions to our daily economic problems. Study of cause and effect of inflation or deflation falls within the purview of science but framing appropriate and suitable monetary and fiscal policies to control inflation and deflation is an art.

Lionel Robbins used the word science for Economics. He says Economics is a science, which studies human behavior as a relationship between ends and scarce means which have alternative uses. According to Keynes study of fiscal & monetary measures and their application to solve problems of unemployment, depression, and inflation etc for promoting welfare of human being makes economics an Art.

Banking

It is very difficult to correctly define a bank, because a bank performs multifarious functions. Different kinds of banks having different functions may be defined in different ways according to their functions. A general and comprehensive definition to cover all types of banking institutions would be unscientific and probably impossible.

Now, Have a look at that some popular definitions of Banking:
According to Keynes:
"A bank is an institute which receives deposits and advances loans."

According to Kinley:
"An establishment which makes to individuals such advances of money or other means of payments as may be required and safely made and to which individuals entrust money or the means of payments when not required for use by them."