Motivation is undoubtedly the ...

Motivation is undoubtedly the single greatest influence on how well people perform. Most productivity studies have found that motivation has a stronger influence on productivity than any other factor.
Motivation is undoubtedly the single greatest influence on how well people perform. Most productivity studies have found that motivation has a stronger influence on productivity than any other factor.
 Steve McConnell

More phrases

Effort only fully releases its reward after a person refuses to quit.
Never complain and never explain.
A good plan violently executed now is better than a perfect plan executed next week.
 George S. Patton
Problems are not stop signs, they are guidelines.
 Robert Schuller
Never give up, for that is just the place and time that the tide will turn.
 Harriet Beecher Stowe

Quotes from the same author

Even when you have skilled, motivated, hard-working people, the wrong team structure can undercut their efforts instead of catapulting them to success. A poor team structure can increase development time, reduce quality, damage morale, increase turnover, and ultimately lead to project cancellation.
 Steve McConnell
It's OK to figure out murder mysteries, but you shouldn't need to figure out code. You should be able to read it.
 Steve McConnell
There are no secrets on an successful software project. Both good and bad news must be able to move up and down the ptoject hierarchy without restriction.
 Steve McConnell
In my experience, you either have encapsulation and abstraction or you have neither. There is no middle ground.
 Steve McConnell
The default movement on a software project should be in the direction of taking elements of the software away to make it simpler rather than adding elements to make it more complex.
 Steve McConnell