All achievement should be ...

All achievement should be measured in human happiness.
All achievement should be measured in human happiness.

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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.
You have to have the service mentality in the sense that you subjugate your own ego, and you subjugate a large part of your own life to really helping other people, being successful on their behalf.
 Herb Kelleher
Success consists of going from failure to failure without loss of enthusiasm.

Quotes from the same author

Where all think alike, no one thinks very much.
Ideals are an imaginative understanding of that which is desirable in that which is possible.
It requires wisdom to understand wisdom: the music is nothing if the audience is deaf.
No mariner ever enters upon a more uncharted sea than does the average human being born in the 20th century. Our ancestors know their way from birth through eternity; we are puzzled about the day after tomorrow.
What the public does is not to express its opinions but to align itself for or against a proposal. If that theory is accepted, we must abandon the notion that democratic government can be the direct expression of the will of the people. We must abandon the notion that the people govern. Instead, we must adopt the theory that, by their occasional mobilizations as a majority, people support or oppose the individuals who actually govern. We must say that the popular will does not direct continuously but that it intervenes occasionally.