In a conflict between the heart and the brain, follow your heart.
Once you have tasted flight, you will forever walk the earth with your eyes turned skyward, for there you have been, and there you will always long to return.
To succeed in your mission, you must have single-minded devotion to your goal.
You say I started out with practically nothing, but that isn't correct. We all start with all there is, it's how we use it that makes things possible.
If you enter this world knowing you are loved and you leave this world knowing the same, then everything that happens in between can be dealt with.
Do what you can, with what you have, where you are.
Waste no more time arguing about what a good man should be. Be one.
My optimism wears heavy boots and is loud.
We are what we repeatedly do. Excellence, then, is not an act, but a habit.
Make today worth remembering.
The only way of discovering the limits of the possible is to venture a little way past them into the impossible.
March on. Do not tarry. To go forward is to move toward perfection. March on, and fear not the thorns, or the sharp stones on life's path.
Don't complain about the snow on your neighbor's roof when your own doorstep is unclean.
One person with a belief is equal to a force of ninety-nine who have only interests.
For every man there exists a bait which he cannot resist swallowing.
Courage is the thing. All goes if courage goes.
Never trust the advice of a man in difficulties.
Work gives you meaning and purpose and life is empty without it.
The person who takes no chances generally has to take whatever is left when others are through choosing.
Man needs his difficulties because they are necessary to enjoy success.
Effort only fully releases its reward after a person refuses to quit.