What is duty tour?

Famous quotes containing the words tour and/or duty:

    Do you know I believe that [William Jennings] Bryan will force his nomination on the Democrats again. I believe he will either do this by advocating Prohibition, or else he will run on a Prohibition platform independent of the Democrats. But you will see that the year before the election he will organize a mammoth lecture tour and will make Prohibition the leading note of every address.
    William Howard Taft (1857–1930)

    We live in a world which is full of misery and ignorance, and the plain duty of each and all of us is to try to make the little corner he can influence somewhat less miserable and somewhat less ignorant than it was before he entered it.
    Thomas Henry Huxley (1825–1895)