Don’t look a gift horse in the mouth.
Every cloud has a silver lining.
Don’t put all your eggs in one basket.
Birds of a feather flock together.
Variety is the spice of life.
Early to bed and early to rise, makes a man miss all the nightlife.
Don’t cross the bridge until you come to it.
No use crying over spilled milk.
A rolling stone gathers no moss.
Beauty is only skin deep.