Perseverance is:

Being able to bear difficulties calmly and without complaint.

Steady persistence in a course of action, a state, etc.; especially in spite of difficulties, obstacles, or discouragement.

COMMITMENT

Problems are not stop signs, they are guidelines.  ~Robert Schuller

HARD WORK

Perseverance is the hard work you do after you get tired of doing the hard work you already did. ~Newt Gingrich

ENDURANCE (RESISTANCE)

Fall seven times, stand up eight. ~Japanese Proverb

PATIENCE

Patience and perseverance have a magical effect before which difficulties disappear and obstacles vanish.

- John Quincy Adams

Are you persevering?