To his wife, daughter and son, James quotes an old Chinese idiom, "Principled in action, fair with people." Applying this standard wherever they are, in whatever situation, they each have their own role to play.
張赤道告訴妻兒「做事有原則，做人有分寸」這個放諸四海而皆準的標準，要他們每人扮好自己的角色。