Yancin samun ingantaccen tsarin rayuwa hakki ne na ɗan adam . Yana daga cikin Sanarwar Majalissar Dinkin Duniya game da 'Yancin Dan Adam wanda Babban Taron Majalisar Dinkin Duniya ya karba a ranar 10 ga Disamba, 1948.   Bugu da ƙari kuma, an rubuta shi a cikin labarin 11 na Yarjejeniyar kasa da kasa ta Duniya game da Tattalin Arziki, Tsarin Al'adu da Al'adu . Wanda ya gabaci wannan 'yancin, ' Yanci daga So, yana daya daga cikin Yanci Hudu da Shugaban Amurka Franklin D. Roosevelt yayi magana a Jiharsa ta tarayyar Janairu 6, a shekarata1941. A cewar Roosevelt hakki ne ga duk wani ɗan adam a duk inda yake a duniya ya kamata ya samu. A cikin jawabin nasa Roosevelt ya bayyana haƙƙinsa na uku kamar haka: 'Yancin tattalin arziki, zamantakewa da al'adu 'Yancin mutum na ruwa da tsafta   United Nations, Universal Declaration of Human Rights Roosvelt, Franklin Delano (January 6, 1941) The Four Freedoms, American Rhetoric