The first requisite for ...

The first requisite for success is the ability to apply your physical and mental energies to one problem incessantly without growing weary.
The first requisite for success is the ability to apply your physical and mental energies to one problem incessantly without growing weary.

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Being self-made is a state of mind, and once you put that mentality to work, your success will come.
 Dave East
A lot of people change for good. Some people just fall off. Just trying to progress in anything, no matter what you're doing, I feel like any progression you make... some people aren't gonna be around you that were around you.
 Dave East
There are no secrets to success. It is the result of preparation, hard work, and learning from failure.
Once you get the nod, your mentality totally changes. It's like a heavyweight fighter-you win the title and that's it, you don't want to look back and you don't want to change. That's the way I feel and I'm looking to keep the job.?
 Mark Sanchez
Inspirational leaders need to have a winning mentality in order to inspire respect. It is hard to trust in the leadership of someone who is half-hearted about their purpose, or only sporadic in focus or enthusiasm.
 Sebastian Coe

Quotes from the same author

If we did the things we are capable of, we would astound ourselves.
Genius is one percent inspiration and ninety-nine percent perspiration.
Many of life's failures are people who did not realize how close they were to success when they gave up.
Just because something doesn't do what you planned it to do doesn't mean it's useless.
Our greatest weakness lies in giving up. The most certain way to succeed is always to try just one more time.