“One hand washes the other”: meaning, origin and examples

What it means
The phrase One hand washes the other means that people work together or help each other, often for mutual benefit. It suggests that cooperation and mutual support bring positive outcomes.
Tone Cooperative
Where it comes from
This phrase can be traced back to ancient Rome, as Manus manum lavat, a quote attributed to the philosopher Seneca. It was popularized in the English-speaking world much later, capturing the idea of mutual benefits and assistance.
Examples
- I’ll help you with your project if you help me with mine—one hand washes the other.
- In business, networking is key; one hand washes the other.
- They helped each other succeed because they knew that one hand washes the other.
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