"Good communication is as stimulating as black coffee and just as hard to sleep after"
"Common sense is the collection of prejudices acquired by age eighteen"
"Nowadays most people die of a sort of creeping common sense; and discover when it is too late that the only things one never regrets are one's mistakes"
"The freethinking of one age is the common sense of the next"
"You can't say that civilization don't advance; however; for in every war they kill you in a new way"
"Civilization begins with order; grows with liberty; and dies with chaos"
"The true civilization is where every man gives to every other every right that he claims for himself. "
"The more rapidly a civilization progresses; the sooner it dies for another to rise in its place"
"If you can give your son or daughter only one gift; let it be enthusiasm"
"Human beings are the only creatures that allow their children to come back home."