author
Francisco Sánchez
A restless Renaissance thinker, physician, and skeptic, he became known for questioning whether human beings can truly know anything with certainty. His writing helped make doubt itself a serious tool of inquiry.
1 Audiobook
Que nada se sabe
by Francisco Sánchez
About the author
Born around 1550 on the Spanish-Portuguese border, Francisco Sanches grew up in a family of Jewish converts and spent much of his life in France. He studied medicine at Montpellier and later worked in Toulouse as both a physician and a teacher.
He is best remembered for Quod Nihil Scitur (often translated as That Nothing Is Known), published in 1581. In that book, he challenged the confidence of traditional philosophy and argued that easy claims to certainty should be treated with suspicion.
Even though he is often described as a skeptic, his work was not simply negative or dismissive. He pushed readers to question inherited ideas and to look more carefully at experience, inquiry, and the limits of human knowledge, which is why he still stands out as an important figure in Renaissance thought.