“An extensive knowledge is needful to thinking people- it takes away the heat and fever; and helps, by widening speculation, to ease the burden of the mystery
“One's first step in wisdom is to question everything - and one's last is to come to terms with everything
“A clever child brought up with a foolish one can itself become foolish. Man is so perfectible and corruptible he can become a fool through good sense
“What is the good of drawing conclusions from experience? I don't deny we sometimes draw the right conclusions, but don't we just as often draw the wrong ones?
“There is frequently more to be learned from the unexpected questions of a child than the discourses of men, who talk in a road, according to the notions they have borrowed and the prejudices of their education.