Proverbs starting with letter W

Want is the mother of industry

Dire need forces people to work, to make enough money to live.

Walls have ears

Be careful what you say and where you say it. There my be someone lurking on the other side of the wall, or, to bring the proverb up to date, there my be a hidden microphone in the wall.

Wake not a sleeping lion

Don't ask for trouble. It's safer to leave things as they are.