肥水不流外人田

1. • lit. don't let one's own fertile water flow into others' field
2. • fig. keep the goodies within the family (proverb)

Character by character

• 肥(féi)fat
• 水(shuǐ)surname Shui
• 不(bù)no
• 流(liú)flow
• 外(wài)outside
• 人(rén)person
• 田(tián)surname Tian