They say Rome wasn't built in a day, but I wasn't on that particular job.
I confess that in 1901 I said to my brother Orville that man would not fly for fifty years.
Never trust the advice of a man in difficulties.
Effort only fully releases its reward after a person refuses to quit.
If you fell down yesterday, stand up today.
Once you learn to quit, it becomes a habit.
A painter should begin every canvas with a wash of black, because all things in nature are dark except where exposed by the light.
They deem me mad because I will not sell my days for gold; and I deem them mad because they think my days have a price.
Whenever a negative thought concerning your personal power comes to mind, deliberately voice a positive thought to cancel it out.
For every man there exists a bait which he cannot resist swallowing.
There is only one corner of the universe you can be certain of improving, and that's your own self.
Our patience will achieve more than our force.
There is no passion to be found playing small - in settling for a life that is less than the one you are capable of living.
We are what we repeatedly do. Excellence, then, is not an act, but a habit.
The only way of finding the limits of the possible is by going beyond them into the impossible.
The secret to creativity is knowing how to hide your sources.
The secret of health for both mind and body is not to mourn for the past, nor to worry about the future, but to live the present moment wisely and earnestly.
I would prefer even to fail with honor than win by cheating.
Be not ashamed women, ... You are the gates of the body, and you are the gates of the soul.
Our life is what our thoughts make it.
Focus on where you want to go, not on what you fear.