“I know that inner wisdom is more precious than wealth. The more you spend it, the more you gain.”
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Oprah Winfrey 143
American businesswoman, talk show host, actress, producer, … 1954Related quotes

“I love you, Elizabeth… and more than that, I like you. I enjoy spending time with you.”
Source: The Lucky One
Source: The Four Pillars of Investing (2002), Chapter 7, Misbehavior, p. 179.

“It requires more than a day's devotion to know and to possess the wealth of a day.”
Life Without Principle (1863)
Context: I do not know but it is too much to read one newspaper a week. I have tried it recently, and for so long it seems to me that I have not dwelt in my native region. The sun, the clouds, the snow, the trees say not so much to me. You cannot serve two masters. It requires more than a day's devotion to know and to possess the wealth of a day.

Letter to Nathaniel Macon (12 January 1819) http://books.google.com/books?id=oiYWAAAAYAAJ&q=%22Honesty+is+the+first+chapter+in+the+book+of+wisdom%22&pg=PA112#v=onepage
1810s

"The End of the Free Market: Six Questions for Ian Bremmer," http://harpers.org/archive/2010/05/hbc-90006994 Harper's (May 7, 2010).

“Knowing how to keep a friend is more important than gaining a new one.”
Saberlos conservar es más que el hazerlos amigos.
Maxim 158 (p. 90)
The Art of Worldly Wisdom (1647)