Indeed, the best way to think of willpower is not as some shapeless behavioral trait but as a sort of psychic muscle, one that can atrophy or grow stronger depending on how it's used.
Willpower is the key to success. Successful people strive no matter what they feel by applying their will to overcome apathy, doubt or fear.
With but few exceptions, it is always the underdog who wins through sheer willpower.
I get Tweets every day from people telling me that 'Hey, I'm going to overcome my injury or my illness. Cancer. Different diseases. I can beat it because Adrian Peterson showed me the determination and the willpower to be able to prosper and get through adversity whenever it comes.'
When people have a willpower failure, it's because they haven't anticipated a situation that's going to come along.
In the absence of willpower the most complete collection of virtues and talents is wholly worthless.
I never had to try as a kid to stay in shape. In a way, there was no willpower involved.
We can use decision-making to choose the habits we want to form, use willpower to get the habit started, then - and this is the best part - we can allow the extraordinary power of habit to take over. At that point, we're free from the need to decide and the need to use willpower.
There's no doubt that Mexican men and women full of dignity, willpower and a capacity for work are doing the work that not even blacks want to do in the United States.
I was in uniform for four years, and I know that heroism doesn't occur from taking orders, but rather from people who through their own willpower and strength are willing to sacrifice their lives for an idea.