"The pleasure of reading a book is heightened by the knowledge that it is not a new book."

"Sleep is the interest we have to pay on the capital which is called health."

"Women are directly fitted for acting as the nurses and educators of our early childhood, by the fact that they are themselves childish, frivolous and short-sighted."

"The world is a collection of unhappy beings."

"The greatest absurdity is to think that women are capable of artistic or scientific production. They are not."