You will travel in a Land of Marvels

I say, you do have a heart!" "Sometimes," he replied, "when I have the time.

I wanted to see what no one had yet observed, even if I had to pay for this curiosity with my life.

What a big book, captain, might be made with all that is known!" "And what a much bigger book still with all that is not known!

Nothing is more dreadful than private duels in America. The two adversaries attack each other like wild beasts. Then it is that they might well covet those wonderful properties of the Indians of the prairies - their quick intelligence, their ingenious cunning, their scent of the enemy.

It's really useful to travel, if you want to see new things.

He who is mistaken in an action which he sincerely believes to be right may be an enemy, but retains our esteem.