It always seems impossible until it's done.
The only way to learn mathematics is to do mathematics.
Success is not in what you have, but who you are.
The greatest glory in living lies not in never falling, but in rising every time we fall.
I am not afraid of storms, for I am learning how to sail my ship.
The only limit to our realization of tomorrow will be our doubts of today.
Believe you can and you're halfway there.
The only thing we have to fear is fear itself.
The best way to find out if you can trust somebody is to trust them.
Tests are not a measure of your intelligence, but rather a measure of your perseverance.
The expert in anything was once a beginner.
In the middle of difficulty lies opportunity.
Our greatest glory is not in never falling, but in rising every time we fall.
Success is not the key to happiness. Happiness is the key to success. If you love what you are doing, you will be successful.
The difference between the impossible and the possible lies in a person's determination.
The only way to do great work is to love what you do.
I have not failed. I've just found 10,000 ways that won't work.
It does not matter how slowly you go as long as you do not stop.
If you don't like something, change it. If you can't change it, change your attitude.
Success is not final, failure is not fatal: It is the courage to continue that counts.