"By looking far out into space we are also looking far back into time, back toward the horizon of the universe, back toward the epoch of the Big Bang."

"The universe is not required to be in perfect harmony with human ambition."

"But I try not to think with my gut. If I'm serious about understanding the world, thinking with anything besides my brain, as tempting as that might be, is likely to get me into trouble."

"The way to find out about our place in the universe is by examining the universe and by examining ourselves - without preconceptions, with as unbiased a mind as we can muster."

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

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

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

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

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

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

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

"It's important to be active in the causes that are important to you... That's how we make changes in this world."

"It's important to be active in the causes that are important to you... That's how we make changes in this world."

"There are four ways, and only four ways, in which we have contact with the world. We are evaluated and classified by these four contacts: what we do, how we look, what we say, and how we say it."

"Garlicky chicken is the best breakfast in the world."

"What drives me is what I'm putting out into the world, and I like to make films that people can connect to, or they can escape in."

"We can continue to try and clean up the gutters all over the world and spend all of our resources looking at just the dirty spots and trying to make them clean. Or we can lift our eyes up and look into the skies and move forward in an evolutionary way."

"I feel we need to remind the world about the Apollo missions and that we can still do impossible things."

"Not everyone will understand this need for America to lead the world in space."

"As long as there are rich people in the world, they will be desirous of distinguishing themselves from the poor."

"There is repetition everywhere, and nothing is found only once in the world."

"There is nothing in the world more shameful than establishing one's self on lies and fables."

"People may live as much retired from the world as they like, but sooner or later they find themselves debtor or creditor to some one."

"Let everyone sweep in front of his own door, and the whole world will be clean."