1.   Any honest guitar maker will admit that making acoustics is no exact science, but an unpredictable art.

2.   Diagnosing power in organizations is not an exact science.

3.   Predicting the weather is not an exact science.

4.   Systems analysis in general - and data analysis is a branch of systems analysis - is an art, not an exact science.

5.   The equation that determines housing appreciation is far from being an exact science.

6.   The truth is that eating is not an exact science and never will be.

7.   The way he went on anyone would think we were engaged in an exact science.

8.   To listen to many authorities on nutrition, you might think that eating is an exact science.

9.   Forecasting floods is not an exact science.