There is very little difference in people, but that little difference makes a big difference. The little difference is attitude. The big positive difference is weather it is positive or negative.
Long time ago I read the story of two shoe salesman, who were send to an island to sell shoes. The first sales man was shocked to realize that no one wore shoes. Immediately he sent a telegraph to his home office saying, “will return home tomorrow, no one wears shoes.”
The second sales man was thrilled by the same realization. Immediately we wired his home office saying, “please send me 10,000 pairs, everyone here needs them.”
In Awake, My Heart, J Sidlow Baxter wrote, “What is the difference between an obstacle and an opportunity? Our attitude toward it. Every opportunity has a difficulty and every difficulty has an opportunity.” [Source]
Similarly in the story of David and Goliath, when Goliath came to fight all of the soldiers thought, “He is so big, we can never kill him.” But when David looked at the same giant he said, “”He is so big, I can not miss him.”