15. Be chivalrous in getting along with friends and unadorned in conducting yourself.
交友须带三分侠气；做人要存一点素心。
今文解译
交朋友要有些豪爽仗义的气概；做人要有点不张扬的平常心态。
English Translation
Be somewhat chivalrous when you get along with friends.
Be a bit unadorned when you conduct yourself in society.
