Michel de Montaigne, an influential writer of the French Renaissance, is known for popularizing the essay as a literary genre, merging serious intellectual speculation with casual anecdotes and autobiography. Montaigne had a direct influence on writers the world over, including Blaise Pascal, René Descartes, Ralph Waldo Emerson, Stefan Zweig, Friedrich Nietzsche, Jean-Jacques Rousseau, Isaac Asimov, Eric Hoffer, and perhaps William Shakespeare.
Montaigne would be recognized as embodying, perhaps better than any other author of his time, the spirit of freely entertaining doubt which began to emerge at that time. He is most famously known for his skeptical remark, 'Que sais-je?' ('What do I know?'). Montaigne's attempt to examine the world through the lens of the only thing he can depend on implicitly — his own judgment — makes him more accessible to modern readers than any other author of the Renaissance.

I'm not certain about this...I think.

René Descartes was out drinking one evening. The barman asked him if he would like a refill. "I think not", said Descartes, and vanished.

EVEN COMMENTS ARE UNCERTAIN NOW....thanx for yors JorJor xc