But, as time wore on, it became obvious that, after two full seasons, Porziņģis still hadn't found the stamina to manage the N.B.A.'s grinding, eighty-two-game season.
When you think about it, you really have to wonder how Bruce Ratner has found the stamina to persist.
Now, Serena Williams can tighten her jaw, flash the cold stare and find the mental stamina that has sustained Venus through numerous comebacks on her way to four major titles in two years.
And it was Barzalona who ranged up alongside Dettori in the closing stages, only to be beaten off as Colour Vision found the extra stamina that had persuaded Dettori to choose him in the first place.
Where does he find the time and the intellectual stamina to do so?
The competition to find the right horse can be bruising, if not to the stamina, then to the ego.
What's so funny is that entrepreneurs apparently aren't interested in typical drugs – instead they find the one that gives them a mental and stamina advantage.
This music legend's been stricken with throat cancer, and he's so rail thin you wonder how he finds the strength and stamina to beat those drums, but the former leader singer of The Band still plays with a superhuman energy, banging out classics like "The Weight," "Up on Cripple Creek," even "All on a Mardi Gras Day," at least two dozen other songs over the course of two hours.
You'll find your stamina is increased as you get less tired hitting the ball, because you are letting the racquet do the work.
Networking also helped Pat Bresnahan, who's networking contacts helped her find, in her words, "the stamina to hold out for a job that she would really enjoy".
