If you do a person a favor, you'll be his superior; if he does one for you, his inferior; and if neither, you'll be his friend. (Hebrew Proverb) - More Hebrew Proverbs...
Inferior men do not begin undertakings for fear of difficulties. Average men begin, but desist once difficulties appear. Men of superior nature never give up until they achieve their ends, however many the difficulties that appear. (Traditional Proverb) - More Traditional Proverbs...