Nothing in the world can take the place of persistence.
Talent will not; nothing is more common
than unsuccessful men with talent.
Genius will not; unrewarded genius is almost a proverb.
Education will not; the world is full of educated derelicts.
Persistence and determination alone are omnipotent.
— Calvin Coolidge
This is one of my all-time favorite quotes. I have committed it to memory at various times in my life and had it posted on the wall of my office on many occasions.
I am a firm believer that the tortoise always wins the race in the end. Every worthwhile journey is long and arduous. Determination and persistence compel me to continue to put one foot in front of the other and trod on.