Some of you are a little young to remember Irving Younger, the great trial advocacy teacher. Professor Younger developed the "10 Commandments of Cross Examination" that were taught in trial advocacy programs across the country for many, many years.
Experienced trial lawyers would take issue with some of Younger’s commandments, arguing that from time to time they should be ignored. I agree, but that does not mean that they do not have value.
Here is a copy for your reading pleasure.