Don't change horses while crossing a stream.

If wishes were horses, then beggars would ride

Never swap horses crossing a stream.

Show me your horse and I will tell you what you are.

He has to say why there is a need to change horses in the middle of the stream. He has to make the case why people are not better off than they were four years ago.

A good resolution is like an old horse, which is often saddled but rarely ridden