I love this movie - it's message still applies today 77 years later
What Grandpa (Lionel Barrymore) is trying to get Mr. Kirby (Edward Arnold) to understand is that the most important thing in life is to be a mensch (that's a yiddish word for being a person of integrity and honor, or, if you will, be a human being.)
Capra may have been corny, but he sure saw the truth about how human beings should treat each other. Take a look at Mr. Smith Goes to Washington. It could be reset in today's world and not change a word of dialogue.
This positively infantile preoccupation with bosoms!Terry-Thomas about US 1963.Hasnt changed much!