So we started in to pay some attention to our neighbors to the south. Up to now our calling card to Mexico or Central America had been a gunboat or a bunch of Violets shaped like Marines. We could never understand why Mexico wasent just crazy about us; for we always had their good-will, and Oil and coffee and minerals, at heart.

Will Rogers (1879-1935) American humorist

Essay (1928-05-12), “More Letters from a Self-Made Diplomat to His President,” Saturday Evening Post, Vol. 200, No. 46
    (Source)

Excerpted in Donald Day (ed.), The Autobiography of Will Rogers, ch. 14 (1949), which indicates Rogers' trip to Mexico was in December 1927. The text there is the same except at the very beginning, where it reads "We've started in to pay ..."

Shortened variant:

I see where we are starting to pay some attention to our neighbors to the south. We could never understand why Mexico wasn't just crazy about us, for we have always had their good will, and oil and minerals, at heart.