If you don't make mistakes, you're not working on hard enough problems. And that's a big mistake.
Human beings, by changing the inner attitudes of their minds, can change the outer aspects of their lives.
Demand the best from yourself, because others will demand the best from you... Successful people don't simply give a project hard work. They give it their best work.
You, yourself, as much as anybody in the entire universe, deserve your love and affection.
I am who I choose to be. I always have been what I chose - though not always what I pleased.
Lois McMaster Bujold
Though no one can go back and make a brand new start, anyone can start from now and make a brand new ending.
The great aim of education is not knowledge but action.
Each moment in time we have it all, even when we think we don't.
Men often become what they believe themselves to be. If I believe I cannot do something, it makes me incapable of doing it. But when I believe I can, then I acquire the ability to do it even if I didn't have anything in the beginning.
Many of our fears are tissue paper thin, and a single courageous step would carry us clear through them.
Make one person happy each day, and in forty years you will have made 14,600 human beings happy for a little time, at least.