Use consistent Positive Reinforcement(CPR)
"A well placed ohrase, embodying praise,most certainly pays."
Show them you have high expectations.
"No one rises to low expectations."
Spend Quality and Quantity time with them.
Correct them when they are wrong. "Love does not mean permissiveness."
Help them to shape good habits very early in (infancy) life.
Coperate with your children's teachers,and endorse their education.
demonstrate respect for their mothers and fathers and their elders.
Be there! anyhow.
Build the aforementioned suggestions from a Spritual Foundation.