Great question. I think that probably the most important "suggestion" , or advice, I ever received was about respect. My mother taught me respect by example. If she was wrong she admitted it. She apologized when necessary. And I loved her for it. She gave me the best advice and the best example of anyone I know.
She told me when my first child was born that if I wanted my children to grow up to respect authority, or in fact, anyone who deserves respect, then I had to show them HOW to respect.
"We remember 10% of what we read or hear, 50% of what we see, and nearly 100% of what we do."
I treated my children with respect. I listened. I did NOT belittle, demean, or make degrading remarks to them. And, maybe the most important part of showing respect to my children was to admit when I was wrong and if an apology was needed, apologize to them.
We laugh a lot as a family. We have fun. We are not sarcastic with each other. We are real. Respect - for myself, first, then to others.