Other lessons that the author has learned from cooking are: He now knows how important it is to add the right amounts to a dish.
What are the lessons?
The lesson that the author learned about cooking is that it is important to add the right amounts of ingredients to a dish. Before this time, this author had a relaxed view of adding the correct quantities of ingredients to a dish.
After his interactions with other experienced cooks, he learned that it was vital to add the right amounts to a dish. This would avoid having any ingredient in excess, maintain balance and good taste, and enhance the health of those eating.