Quotes from book
The Innocents Abroad

The Innocents Abroad, or The New Pilgrims' Progress is a travel book by American author Mark Twain published in 1869 which humorously chronicles what Twain called his "Great Pleasure Excursion" on board the chartered vessel Quaker City through Europe and the Holy Land with a group of American travelers in 1867. It was the best-selling of Twain's works during his lifetime, as well as one of the best-selling travel books of all time.

“Guides cannot master the subtleties of the American joke.”
Source: The Innocents Abroad (1869), Ch. 27

“Virtue never has been as respectable as money.”
Ch. 54 http://books.google.com/books?id=XX-wAAAAIAAJ&q="Virtue+never+has+been+as+respectable+as+money"&pg=PA589#v=onepage
The Innocents Abroad (1869)

Vol. II, Conclusion http://books.google.com/books?id=f4EwNleAjJAC&q=%22Travel+is+fatal+to+prejudice+bigotry+and+narrow-mindedness+and+many+of+our+people+need+it+sorely+on+these+accounts+Broad+wholesome+charitable+views+of+men+and+things+cannot+be+acquired+by+vegetating+in+one+little+corner+of+the+earth+all+one's+lifetime%22&pg=PA333#v=onepage
Source: The Innocents Abroad (1869)
Context: Travel is fatal to prejudice, bigotry, and narrow-mindedness, and many of our people need it sorely on these accounts. Broad, wholesome, charitable views of men and things cannot be acquired by vegetating in one little corner of the earth all one's lifetime.

Source: The Innocents Abroad (1869), Ch. 61.
Context: The people of those foreign countries are very, very ignorant. They looked curiously at the costumes we had brought from the wilds of America. They observed that we talked loudly at table sometimes. They noticed that we looked out for expenses and got what we conveniently could out of a franc, and wondered where in the mischief we came from. In Paris they just simply opened their eyes and stared when we spoke to them in French! We never did succeed in making those idiots understand their own language.

“I must have a prodigious quantity of mind; it takes me as much as a week sometimes to make it up.”
Source: The Innocents Abroad (1869), Ch. 7