Grandad Jokes

Yours is not to question why; yours is but to do or die. This is the one that gave me the initial deja vu feeling, and I actually looked it up and the phrase is actually "ours is not to reason why," but it is still an alteration of a line in a Tennyson poem about the British military: “Theirs not to make reply / Theirs not to reason why / Theirs but to do and die.” However, I am pretty sure that my family used to mean that if you are a child, just do as you are told. I guess this kind of jives with the military aspect, although luckily as a child we would not actually die, which cannot be said for the soldiers. 
Children should be seen and not heard. My Grandad was often working when we were at his house and you had to always be quiet. This also was used when we interrupted, and I would often stand there quietly, waiting for him (or my Dad) to call on me to speak when he was on the phone or talking to someone else. Of course in my child's mind, what I wanted to say (probably "can I have an ice cream") was important, but he would make me wait my turn. 
A penny saved is a penny earned. As I have talked about before, I am actually a saver, and I don't know if it was this phrase that kicked off my habit, but this is one I heard often. I actually had a savings account when I was quite young; in fact I had a little bank ledger book that I would record each entry in and I was fastidious about keeping track! Although I don't think we should pinch pennies so much that we do not enjoy our day to day life, I do think that not spending on frivolous things now can help build a bigger pot for later, as the saying indicates. I think my Dad and Grandma still also use the phrase, so it lives even though my Grandad does not. 
In for a penny, in for a pound. If you are start something, you may as well go all out, no matter how difficult or costly it is. Once again, I do not know if I have this phrase in my head when completing a race, or working on a project at work, but I definitely believe in finishing what you started, so maybe this phrase stuck too! However, I am not sure I would always throw good money after bad, so the literal "pound" part of if may give me pause. 
A job worth doing is worth doing well. Once again, I think this one makes sense. My parents had a business and I worked in the convenience store and helped clean cabins from the time I was about eight. I remember my Dad checking on my sweeping and mopping at the end of the evening and making me redo it if there was dirt in any of the corners. My Mom makes her beds with perfect hospital corners and I also learned to do this by having to redo it if I got it wrong. I hated that, and I hated redoing it, BUT guess what, they were right to do that (thanks guys) because I do not like to do shoddy or half baked work now. To be frank, my Dad will probably still go one step further than me because he is a Gemini perfectionist, and my Mom's hospital corners are still way tighter than mine, but doing it right the first time rather than having to fix it again later makes sense! 
Have you heard these phrases? Do you agree with them? What phrases do/did your grandparents or parents use often?