“The only source of knowledge is experience.”

“I'd rather be an optimist and a fool than a pessimist and right.”

“The best way to become a person that others are drawn to is to develop qualities that we are attracted to in others.”

“J'étais tombé sur l'un des secrets les mieux gardés sur les Noirs: la plupart d'entre nous n'étaient pas intéressés par la révolte; la plupart d'entre nous étaient fatigués de penser tout le temps au problème racial; si nous préférions rester entre nous, c'était surtout parce que c'était le meilleur moyen d'arrêter d'y penser, que c'était plus facile que de passer notre temps en colère ou à essayer de deviner ce que les Blancs pensaient de nous.”

“No clergyman however brilliant, no evangelist no matter how eloquent or compelling, can bring about the revival we need. Only the Holy Spirit can do this.”

“This election is about the past vs. the future. It's about whether we settle for the same divisions and distractions and drama that passes for politics today or whether we reach for a politics of common sense and innovation, a politics of shared sacrifice and shared prosperity. There are those who will continue to tell us that we can't do this, that we can't have what we're looking for, that we can't have what we want, that we're peddling false hopes. But here is what I know. I know that when people say we can't overcome all the big money and influence in Washington, I think of that elderly woman who sent me a contribution the other day, an envelope that had a money order for $3.01 along with a verse of scripture tucked inside the envelope. So don't tell us change isn't possible. That woman knows change is possible. When I hear the cynical talk that blacks and whites and Latinos can't join together and work together, I'm reminded of the Latino brothers and sisters I organized with and stood with and fought with side by side for jobs and justice on the streets of Chicago. So don't tell us change can't happen. When I hear that we'll never overcome the racial divide in our politics, I think about that Republican woman who used to work for Strom Thurmond, who is now devoted to educating inner city-children and who went out into the streets of South Carolina and knocked on doors for this campaign. Don't tell me we can't change. Yes, we can. Yes, we can change. Yes, we can. Yes, we can heal this nation. Yes, we can seize our future. And as we leave this great state with a new wind at our backs and we take this journey across this great country, a country we love, with the message we carry from the plains of Iowa to the hills of New Hampshire, from the Nevada desert to the South Carolina coast, the same message we had when we were up and when we were down, that out of many, we are one; that while we breathe, we will hope. And where we are met with cynicism and doubt and fear and those who tell us that we can't, we will respond with that timeless creed that sums up the spirit of the American people in three simple words -- yes, we can.”

“The conservative revolution that Reagan helped usher in gained traction because Reagan's central insight - that the liberal welfare state had grown complacent and overly bureaucratic, with Democratic policy makers more obsessed with slicing the economic pie than with growing the pie - contained a good deal of truth.”

“The greatest lesson of life is that you are responsible for your life.”

Galileo once wrote, "You cannot teach a man anything; you can only help him find it within himself.”

“Love is the chain whereby to lock a child to its parent.”

“Nonviolence is a powerful and just weapon. It is a weapon unique in history, which cuts without wounding and ennobles the man who wields it.”

“The success of love is in the loving - it is not in the result of loving. Of course it is natural in love to want the best for the other person, but whether it turns out that way or not does not determine the value of what we have done.”

“The time is always right to do what’s right.”

“When our dreams shatter and we feel helpless, that’s when we have to believe in God’s power and presence.”

“When negative thoughts come, the key is to never verbalize them.”