What one person throws away may be useful and valuable to someone else.

This saying is often used to describe either the diversity of human preferences or to express optimism that humans are quite creative when it comes to repurposing or recycling what other people throw away.

For example, entrepreneur Gibson Kiwago, founder of WAGA Tanzania, recycles old laptop batteries to power homes and businesses in Tanzanzia. Check out our E-Waste Reading List!

The notion that people subjectively assess quality has been around a long time. The saying derives from a 17th century proverb:

Have you ever seen value in something that someone else threw away?

Widespread economic prosperity typically reaches all citizens of a country or region. A country cannot benefit without all of its citizens somehow benefitting, in the same way that an incoming tide will lift all boats including both the behemoth cruise ships and the tiny canoes.

Occasionally, the adage also may be used when referring to entire groups benefitting from a change in circumstances, particularly an influx of resources that seemingly might reach only individuals. I have heard co-workers respond to their co-workers receiving large sales commissions by saying, "a rising tide lifts all boats," implying that the increase in business for the company will expand the total opportunities for the company (and thus all employees). In this use case, clearly it is understood that the "rising tide" does not lift all boats equally.

Critics of this proverb may dispute its veracity claiming the phrase is erroneously used to justify any type of deal or arrangement that seems to benefit the few, but typically the expression is used with optimism or as a form of mild celebration by leaders, or members of the group themselves.

The proverb is often attributed to John F. Kennedy after he used it in a 1963 speech disputing the claim that a dam construction project had too much pork (wasteful spending). Kennedy's speechwriter (Ted Sorensen) revealed that the New England Council originally used the phrase, which Kennedy borrowed regularly.

A similar phrase is "to grow the pie," which means to make the entire set of opportunities greater, presumably so that everyone can appreciate a larger piece of pie, even if their percentage of the pie does not change.

Do you share the sentiment that broad economic prosperity reaches all?

Umewahi kuona mhunzi akifanya kazi? Au labda ulimwoma fundi akitengeza glass (kioo)? Si ni ajabu sana? (Ukitaka kuona kwa macho yako, tembelea Shanga Foundation Arusha, au tazama videos kwenye links hapo chini - ona Rasilimali).

Katika uzoefu wetu, glasi ni ngumu, yaani haikunji kabisa. Ukitumia nguvu zako zote, kio kitavunjika mkononi mwako na kukuumiza. Lakini hakika kioo hutengenezwa kwa kuyeyusha mchanga, mabichi na laini kama udongo.

Maishani kuna mambo ambayo yanaonekana kuwa magumu, yaani hayabadiliki kabisa, hayapindi. Tukitumia nguvu zetu zote, yataharibika tu na kutuumiza. Lakini fundi mwenye ujuzi anaweza kuyafanya kuwa mepesi na laini, kwa kuyatayarisha ipasavyo, na kuchukua hatua sahihi kwa wakati ufaao.

Methali hii hutumika sana kwa maana "chukua hatua haraka fursa inapotokea, ili usiikose." Kama WaSwahili wanavyosema "Samaki mkunje angali mbichi." Ona pia There is a tide:

Hata hivyo, ikumbukwe kwenye tamthilia hii, ushauri huu ulikuwa na madhara mabaya kwake, maana Buruto hakushinda baada ya hotuba hii (soma zaidi...)

Lugha na tamaduni nyingi zina methali zinazofanana sana na hii. Labda methali hizo zina chimbuko nyingi tofauti zisizotegemeana. 

It’s a simple and profound truth about human relationships: Making a promise means creating an expectation in others. When we fail to keep our promises, we damage our relationships and our reputation. Next time you make a promise, ask yourself, "Would I sign a contract that said this?"

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What do you think? Is a promise as strong as a contract?