In three words I can sum up everything I've learned about life: it goes on.
The journey of a thousand miles begins with one step.
The best way to predict the future is to invent it.
The only way to do great work is to love what you do.
Life is what happens when you're busy making other plans.
The only limit to our realization of tomorrow will be our doubts of today.
I have not failed. I've just found 10,000 ways that won't work.
In the end, it's not the years in your life that count. It's the life in your years.
We must accept finite disappointment, but never lose infinite hope.

The only true wisdom is in knowing you know nothing.

It is during our darkest moments that we must focus to see the light.
The only thing necessary for the triumph of evil is for good men to do nothing.