Success is the ability to go from one failure to another with no loss of enthusiasm.
Believe you can and you can.
I found that the harder I work the more luck I seem to have.
You never know what you can do till you try.
The secret of success is constancy to purpose.
One responsibility, doing business humbly.
There are no secrets to success. It is the result of preparation, hard work, and learning from failure.
Always bear in mind: No pains, no gains, quantitative change caused a qualitative change eventually.
Don't aim for success if you want it; just do what you love and believe in, and it will come naturally.
Whatever is worth doing is worth doing well.