You lose the speed before the stamina.
— Haile Gebrselassie

Human kindness has never weakened the stamina or softened the fiber of a free people. A nation does not have to be cruel to be tough.
Franklin D. Roosevelt stamina quote

The wayside of business is full of brilliant men who started out with a spurt, and lacked the stamina to finish. Their places were taken by patient and unshowy plodders who never knew when to quit.
— J. R. Todd

I have a lot of stamina and I have a lot of resilience.
— Hillary Clinton

To survive there, you need the ambition of a Latin-American revolutionary, the ego of a grand opera tenor, and the physical stamina of a cow pony.
— stamina quotation by Billie Burke