No legacy is so rich as honesty. (Shakespeare)
We surely want to leave for our children and grandchildren a legacy of generosity and humility (as noticed in previous comments). Those two, however, will probably not be passed on if we don’t recognize Shakespeare’s idea. It’s hard to imagine that any worthwhile quality can be identified as worthy without recognizing a person’s integrity in everyday life.
Better to be poor and honest than to be dishonest and rich (Proverbs 28:6). If you are faithful in little things, you will be faithful in large ones (Luke 16:10).