Vegetables are important. Some people insist a vegetable diet can cure all sorts of ailments. Vegetable snake oil.
Some people insist that five a day makes you healthy fit and wise.
Some people find vegetables play a prominent role in belief systems.
This guy was a dedicated vegetarian. Indeed he believed food should not be cooked. A vegetarian diet is good. Can be interesting, tasty, succulent and healthy. I draw the line at not cooking. That's total mishegas.