We cannot solve our problems with the same thinking we used when we created them.
To be yourself in a world that is constantly trying to make you something else is the greatest accomplishment.
Ability is what you're capable of doing. Motivation determines what you do. Attitude determines how well you do it.
No great discovery was ever made without a bold guess.
Some people feel the rain. Others just get wet.
The starting point of all achievement is desire.
They say Rome wasn't built in a day, but I wasn't on that particular job.
If my mind can conceive it, and my heart can believe it - then I can achieve it.
I can never stand still. I must explore and experiment. I am never satisfied with my work. I resent the limitations of my own imagination.
Everything you can imagine is real.
For every dark night, there's a brighter day
It's not whether you got knocked down; it's whether you get back up.
Today I shall behave, as if this is the day I will be remembered.
I seldom end up where I wanted to go, but almost always end up where I need to be.
Duty does not require any person to submit to the destruction of his personal ambitions and the right to live his own life in his own way.
I don't care what people think or say about me, I know who I am.
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.
A goal is not always meant to be reached, it often serves simply as something to aim at.
The secret of genius is to carry the spirit of the child into old age, which means never losing your enthusiasm.
My heroes are the ones who survived doing it wrong, who made mistakes, but recovered from them.
Man needs his difficulties because they are necessary to enjoy success.