Freedom is born of ...

Freedom is born of self-discipline. No individual, no nation, can achieve or maintain liberty without self-control. The undisciplined man (or woman) is a slave to his own weaknesses.
Freedom is born of self-discipline. No individual, no nation, can achieve or maintain liberty without self-control. The undisciplined man (or woman) is a slave to his own weaknesses.
 Alan Valentine

More phrases

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

For thousands of years, father and son have stretched wistful hands across the canyon of time, each eager to help the other to his side, but neither quite able to desert the loyalties of his contemporaries. The relationship is always changing and hence always fragile; nothing endures except the sense of difference.
 Alan Valentine
Whenever science makes a discovery, the devil grabs it while the angels are debating the best way to use it.
 Alan Valentine