Cooking is not difficult. Everyone has taste, even if they don't realize it. Even if you're not a great chef, there's nothing to stop you understanding the difference between what tastes good and what doesn't.
“In the present state of our knowledge, it would be useless to attempt to speculate on the remote cause of the electrical energy... its relation to chemical affinity is, however, sufficiently evident. May it not be identical with it, and an essential property of matter?”