Never complain and never explain.
To know oneself, one should assert oneself.
Be kind whenever possible. It is always possible.
Always desire to learn something useful.
Without hard work, nothing grows but weeds.
Expect problems and eat them for breakfast.
Wherever you are - be all there.
What you do today can improve all your tomorrows.
Begin to be now what you will be hereafter.
Know or listen to those who know.
For example, I spent a lot of time with Reagan, both before he ran for governor and when he was running for president. As a print reporter without the cameras, I was able to really test the quality of their minds and their knowledge base.