How to Use "insanity" with Example Sentences

1. There is a fine line between entrepreneurship and insanity .

2. If true , this would be fiscal insanity .

3. But bubbles inevitably produce insanity , both on the way up and the way down .

4. He defended himself with a glee that bordered on insanity .

5. For right-wing conservative mps , on the other hand , they demonstrate the insanity of rigid employment rules .