“I mean to make myself a man, and if I succeed in that, I shall succeed in everything else.”
James A. Garfield (1831–1881) American politician, 20th President of the United States (in office in 1881)
A Dictionary of Thoughts : Being A Cyclopedia Of Laconic Quotations from the Best Authors of the World, Both Ancient and Modern (1908) by Tryon Edwards, p. 327
Variant: I mean to make myself a man, and if I succeed in that, I shall succeed in everything else.