If there were no problems, most of us would be unemployed.
For every sale you miss because you're too enthusiastic, you will miss a hundred because you're not enthusiastic enough.
Responsibility and commitment are key elements in meeting obligations.
Success is dependent on the glands - the sweat glands.
The profile of a wealthy person is this hard work, perseverance, and most of all, self-discipline.
When you choose to be pleasant and positive in the way you treat others, you have also chosen, in most cases, how you are going to be treated by others.