polite and respectful
sincere and honest
simple and natural
native and modest
simple and unadorned
sheathe one's talent
modest about one's skill
refrain from showing one's ability
control and refrain from showing
inferior, not as good as
(classic literary symbol)
Modesty benefits, arrogance hurts.
The modest receive benefit, while the conceited reap failure.
Benefit goes to the humble, while failure awaits the arrogant.