Read the paragraph and answer the question.

If you are rich and worth your salt, you will teach your [children] that [if] they have leisure it is not to be spent in idleness; for wisely used leisure merely means that those who possess it, being free from the necessity of working for their livelihood, are all the more bound to carry on some kind of nonremunerative [unpaid] work in science, in letters, in art, in exploration, in historical research--work of the type we most need in this country, out of which reflects most honor upon the nation.

--Theodore Roosevelt, 1899

What type of paragraph is this?

descriptive
narrative
exemplification
cause/effect
comparison/contrast