There comes a time in every life when the past recedes and the future opens. It's that moment when you turn to face the unknown. Some will turn back to what they already know. Some will walk straight ahead into uncertainty. I can't tell you which one is right. But I can tell you which one is more fun.

Phil Knight Co-founder of Nike

Do or do not. There is no try.

Important to the execution of such tasks as rowing and long-distance running is a high level of determination, the ability to ignore pain and other personality traits denoting persistence and durability.  It is usually found that most individuals participating in these types of activities are introverted.  They are usually stable emotionally and, in addition, exhibit sound physiological characteristics and good self-control.