Nothing in the world is difficult for one who sets his mind to it.
Nothing is difficult to the man who will try.
Nothing is impossible to a willing heart.
Where there is a will, there is a way.
Confidence in yourself is the first step on the road to success.
Nothing is impossible (or difficult) to the man who will try.
Nothing is impossible to willing mind (or heart).
nothing is difficult to a man who wills
Confidence of success is almost success.
All things are difficult before they are easy.