“By doubting we come to the question, and by questioning we may come upon the truth.”

“The beginning of wisdom is found in doubting; by doubting we come to the question, and by seeking we may come upon the truth.”

“Against the disease of writing one must take special precautions, since it is a dangerous and contagious disease.”

“(in which, along with Montaigne, we raise the question of whether a book you have read and completely forgotten, and which you have even forgotten you have read, is still a book you have read)”

“Assiduous and frequent questioning is indeed the first key to wisdom... for by doubting we come to inquiry; through inquiring we perceive the truth...”

“The problem with learning the truth about things is that you lose the confidence that comes from being dumb.”

“The key to wisdom is this -- constant and frequent questioning ... for by doubting we are led to question and by questioning we arrive at the truth.”