Who said “It is fortunate that each generation does not comprehend its own ignorance. We are thus…”?

“Nothing so dates a man as to decry the younger generation.”

“The dead might as well try to speak to the living as the old to the young.”

“We have to hate our immediate predecessors to get free from their authority.”

“The old know what they want; the young are sad and bewildered.”

“What one generation sees as a luxury, the next sees as a necessity.”

“The thing generally raised on city land is taxes.”

“Mud-pies gratify one of our first and best instincts. So long as we are dirty, we are pure.”

“There was never a nation great until it came to the knowledge that it had nowhere in the world to go for help.”

“Simplicity is making the journey of this life with just baggage enough.”

“Perhaps nobody ever accomplishes all that he feels lies in him to do; but nearly every one who tries his power touches the walls of his being.”

“The wise man does not permit himself to set up even in his own mind any comparisons of his friends. His friendship is capable of going to extremes with many people, evoked as it is by many qualities.”