9 - A Leopard Cannot Change His Spots

8 - Imitation is the Sincerest form of Flattery

7 - Don't Look A Gift Horse in the Mouth

6 - You Can't Teach an Old Dog New Tricks

5 - All that glitters is not gold

4 - One Swallow Does Not a Summer Make

3- Where there is smoke, there is fire

2- Barking dogs seldom bite