You must look within for value, but must look beyond for perspective.
When you are in the valley, keep your goal firmly in view and you will get the renewed energy to continue the climb.
Virtually nothing on earth can stop a person with a positive attitude who has his goals clearly in sight.
You must stick to your conviction, but be ready to abandon your assumptions.
If you believe you can, you probably can. If you believe you won't, you most assuredly won't. Belief is the ignition switch that gets you off the launching pad.
Everything is something you decide to do, and there is nothing you have to do.