"I can't do it" never yet accomplished anything; "I will try" has performed wonders.
George P. Burnham
Start by doing what's necessary, then what's possible, and suddenly you are doing the impossible.
Francis of Assisi
Most of the important things in the world have been accomplished by people who have kept on trying when there seemed to be no hope at all.
Dale Carnegie
Don't let what you can't do interfere with what you can do.
Anonymous
Throughout the centuries there were men who took first steps down new roads armed with nothing but their own vision.
Ayn Rand
There are three types of people in this world: those who make things happen, those who watch things happen and those who wonder what happened. We all have a choice. You can decide which type of person you want to be. I have always chosen to be in the first group.
Mary Kay Ash
The reward of a thing well done is to have done it.
RALPH WALDO EMERSON