"Extraordinary claims require extraordinary evidence."

"Imagination will often carry us to worlds that never were, but without it we go nowhere."

"For small creatures such as we the vastness is bearable only through love."

"It pays to keep an open mind, but not so open your brains fall out."

"We are like butterflies who flutter for a day and think it is forever."

"We can judge our progress by the courage of our questions and the depth of our answers, our willingness to embrace what is true rather than what feels good."

"The universe is a pretty big place. If it's just us, seems like an awful waste of space."

"Frederick Douglass taught that literacy is the path from slavery to freedom. There are many kinds of slavery and many kinds of freedom, but reading is still the path."

"We are a way for the cosmos to know itself."

"The nuclear arms race is like two sworn enemies standing waist deep in gasoline, one with three matches, the other with five."

"I consider it an extremely dangerous doctrine, because the more likely we are to assume that the solution comes from the outside, the less likely we are to solve our problems ourselves."

"The cosmos is within us. We are made of star-stuff. We are a way for the universe to know itself."

"I don't want to believe. I want to know."

"Expect the best, plan for the worst, and prepare to be surprised."

"A smile is the light in your window that tells others that there is a caring, sharing person inside."

"Our limitations and success will be based, most often, on your own expectations for ourselves. What the mind dwells upon, the body acts upon."

"Success is almost totally dependent upon drive and persistence. The extra energy required to make another effort or try another approach is the secret of winning."

"The results you achieve will be in direct proportion to the effort you apply."

"Forget about the consequences of failure. Failure is only a temporary change in direction to set you straight for your next success."

"Life is inherently risky. There is only one big risk you should avoid at all costs, and that is the risk of doing nothing."

"That which you create in beauty and goodness and truth lives on for all time to come. Don't spend your life accumulating material objects that will only turn to dust and ashes."

"I've been close to Dan and Kathryn for years and impressed by their financial ideas and philosophies. This new institute and release of their new program will allow them to achieve their dream of helping their fellow man as well as giving new hope to those in financial need."

"Understand that you, yourself, are no more than the composite picture of all your thoughts and actions. In your relationships with others, remember the basic and critically important rule: If you want to be loved, be lovable. If you want respect, set a respectable example!"

"All of the top achievers I know are life-long learners... Looking for new skills, insights, and ideas. If they're not learning, they're not growing... not moving toward excellence."

"It is of interest to note that while some dolphins are reported to have learned English - up to fifty words used in correct context - no human being has been reported to have learned dolphinese."

"We make our world significant by the courage of our questions and the depth of our answers"

"The universe seems neither benign nor hostile, merely indifferent."

"The beauty of a living thing is not the atoms that go into it, but the way those atoms are put together."

"Science is a way of thinking much more than it is a body of knowledge."

"She had studied the universe all her life, but had overlooked its clearest message: For small creatures such as we the vastness is bearable only through love."

"The absence of evidence is not the evidence of absence."

"The cure for a fallacious argument is a better argument, not the suppression of ideas."

"Exploration is in our nature. We began as wanderers, and we are wanderers still. We have lingered long enough on the shores of the cosmic ocean. We are ready at last to set sail for the stars."

"Extinction is the rule. Survival is the exception."

"You have all the reason in the world to achieve your grandest dreams. Imagination plus innovation equals realization."

"A life lived with integrity - even if it lacks the trappings of fame and fortune is a shinning star in whose light others may follow in the years to come."

"You must continue to gain expertise, but avoid thinking like an expert."

"The greatest gifts you can give your children are the roots of responsibility and the wings of independence."

"Don't dwell on what went wrong. Instead, focus on what to do next. Spend your energies on moving forward toward finding the answer."

"There are two primary choices in life: to accept conditions as they exist, or accept the responsibility for changing them."

"Out of need springs desire, and out of desire springs the energy and the will to win."

"You must stick to your conviction, but be ready to abandon your assumptions."

"When you are in the valley, keep your goal firmly in view and you will get the renewed energy to continue the climb."

"To establish true self-esteem we must concentrate on our successes and forget about the failures and the negatives in our lives."

"But I could be wrong."

"If it can be destroyed by the truth, it deserves to be destroyed by the truth."

"Who are we? We find that we live on an insignificant planet of a humdrum star lost in a galaxy tucked away in some forgotten corner of a universe in which there are far more galaxies than people."

"You have to know the past to understand the present."

"My view is that if there is no evidence for it, then forget about it. An agnostic is somebody who doesn’t believe in something until there is evidence for it, so I’m agnostic."

"In all our searching, the only thing we've found that makes the emptiness bearable is each other."