
“Oh the thinks you can think up if only you try!”
Variant: Oh, the thinks you can think!
Source: Oh, the Thinks You Can Think!
“Oh the thinks you can think up if only you try!”
Variant: Oh, the thinks you can think!
Source: Oh, the Thinks You Can Think!
“If you think you can you can, if you think you can't you're right!”
“If you think you can, you can. If you think you can't, you're right.”
Variant: If you think you can, you can. And if you think you can not, you are right.
“Whether you think you can, or you think you can't — you're right.”
Quoted in "The Military Quotation Book" (2002) by James Charlton, p. 60