
“A pound of pluck is worth a ton of luck.”
"Elements of Success," Speech at Spencerian Business College, Washington, D.C. (29 July 1869); in President Garfield and Education : Hiram College Memorial (1881) by B. A. Hinsdale, p. 326 http://books.google.com/books?id=rA4XAAAAYAAJ
1860s
Variant: A pound of pluck is worth a ton of luck.