[saraid216]

Wikisource has the full text: http://en.wikisource.org/wiki/Citizenship_in_a_Republic

It's fully reproduced in several places online under the name "Citizenship in a Republic", occasionally as "that speech he gave in Sorbonne": the first and last bits are very clear that his audience is not American. It is a speech very iconic of Teddy Roosevelt himself, too; one of the anecdotes in there is drawn from his time as a cowboy on the range.