Ability is what you're capable of. Motivation determines what you do. Attitude determines how well you do it.
Lou Holtz

Trials and disappointments can take us all to a door of discovery and greatness.
Les Brown

Doing little things well is a step toward doing big things better.
Henry F. Banks

Flaming enthusiasm, backed up by horse sense and persistence, is the quality that most frequently makes for success.
Dale Carnegie