I am tied to the stake, and I must stand the course.

But Hercules himself must yield to odds; And many strokes, though with a little axe, Hews down and fells the hardest-timbered oak.

Perseverance, dear my lord, Keeps honor bright; to have done, is to hang Quite out of fashion, like a rusty mail In monumental mock'ry.

Perseverance, dear my lord, Keeps honor bright

I have always admired the ability to bite off more than one can chew and then chew It.

Men fail much oftener from want of perseverance than from want of talent