Which quotation from the passage best summarizes the passage’s central idea?

“She will know that she has to make some sacrifice as far as her own life is concerned, and for that reason you will find more and more women analyzing what are the really valuable things in human life, deciding whether a job of some kind will be worthwhile for them from several points of view. . . . ”

“It is a far cry from our pioneer ancestors to a lady who owns a house on Fifth Avenue, and yet if you have to give up your house on Fifth Avenue and you have to change to some other conditions in life, it is not so very difficult to go back and reproduce certain conditions which have faded out of our minds. . . . ”

“Perhaps the best I can do is to pray that the youth of today will have the ability to live simply and to get joy out of living, the desire to give of themselves and to make themselves worthy of giving, and the strength to do without anything which does not serve the interests of the brotherhood of man.”

“Instead of sliding out from under responsibility, he accepted it because he knew that he had to develop all those qualities of mind and heart if he were going to be a great doctor or a great surgeon.”