Mário Ferreira dos Santos
| Mário Ferreira dos Santos | |
|---|---|
| Born | 3 January 1907 | 
| Died | 11 April 1968 (aged 61) São Paulo, Brazil | 
| Resting place | Cemitério do Araçá, São Paulo, Brazil | 
| Spouse | Yolanda Duro Lhullier  (m. 1929) | 
| Children | 
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| Philosophical work | |
| Era | 20th-century philosophy | 
| Region | Western philosophy | 
| School | Pythagoreanism Neoplatonism Thomism Scotism Mutualism | 
| Main interests | |
Mário Ferreira dos Santos (Brazilian Portuguese: [ˈmaɾju feˈʁejɾɐ dus ˈsɐ̃tus]; 1907–1968) was a Brazilian philosopher, translator, writer and anarchist activist. He was born in Tietê, São Paulo.
Ferreira published, in less than fifteen years, the 45-volume Encyclopedia of Philosophical and Social Sciences.