Famous quotes containing the words nature and/or explore:
“If there is one thing that is really cheerful in the world, it is cheerfulness. I have noticed it often. And I have noticed that when a man is right down cheerful, he is seldom unhappy for the time being. Such is the nature of man.”
—Mark Twain [Samuel Langhorne Clemens] (1835–1910)
“It is easier to sail many thousand miles through cold and storm and cannibals, in a government ship, with five hundred men and boys to assist one, than it is to explore the private sea, the Atlantic and Pacific Ocean of one’s being alone.... It is not worth the while to go round the world to count the cats in Zanzibar.”
—Henry David Thoreau (1817–1862)