Each man is capable of doing ...

Each man is capable of doing one thing well. If he attempts several, he will fail to achieve distinction in any.
Each man is capable of doing one thing well. If he attempts several, he will fail to achieve distinction in any.

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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

Love is a serious mental disease.
The man who makes everything that leads to happiness depends upon himself, and not upon other men, has adopted the very best plan for living happily. This is the man of moderation, the man of manly character and of wisdom.
Good actions give strength to ourselves and inspire good actions in others.
Cunning... is but the low mimic of wisdom.
A good decision is based on knowledge and not on numbers.