A rat is not born a rabbit.
More Nigerian Proverbs:
Children of the same mother do not always agree.Nigerian
If the bull would throw you, lie down.
Nigerian
He who does not mend his clothes will soon have none.
Nigerian
The only insurance against fire is to have two houses.
Nigerian
Someone else's legs are no good to you when you're travelling.
Nigerian
A person always breaking off from work never finishes anything.
Nigerian