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.Question Truth Courage
If you wish to make an apple pie from scratch, you must first invent the universe.Universe Science
Imagination will often carry us to worlds that never were, but without it we go nowhere.Imagination
The nuclear arms race is like two sworn enemies standing waist deep in gasoline, one with three matches, the other with five.War Humor Enemy
The nitrogen in our DNA, the calcium in our teeth, the iron in our blood, the carbon in our apple pies were made in the interiors of collapsing stars. We are made of starstuff.Inspirational
Somewhere, something incredible is waiting to be known.Science
Every one of us is, in the cosmic perspective, precious. If a human disagrees with you, let him live. In a hundred billion galaxies, you will not find another.Love Perspective Kindness Being human
The universe is a pretty big place. If it's just us, seems like an awful waste of space.Universe Creation
One glance at a book and you hear the voice of another person, perhaps someone dead for 1,000 years. To read is to voyage through time.Reading Book
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. 
Imagination will often carry us to worlds that never were, but without it we go nowhere. 
The nuclear arms race is like two sworn enemies standing waist deep in gasoline, one with three matches, the other with five. 
For me, it is far better to grasp the Universe as it really is than to persist in delusion, however satisfying and reassuring. 
The nitrogen in our DNA, the calcium in our teeth, the iron in our blood, the carbon in our apple pies were made in the interiors of collapsing stars. We are made of starstuff. 
Somewhere, something incredible is waiting to be known. 
Science is not only compatible with spirituality; it is a profound source of spirituality. 
Every one of us is, in the cosmic perspective, precious. If a human disagrees with you, let him live. In a hundred billion galaxies, you will not find another. 
The universe is a pretty big place. If it's just us, seems like an awful waste of space. 
One glance at a book and you hear the voice of another person, perhaps someone dead for 1,000 years. To read is to voyage through time. 
The cosmos is within us. We are made of star-stuff. We are a way for the universe to know itself.
The beauty of a living thing is not the atoms that go into it, but the way those atoms are put together.
The more likely we are to assume that the solution comes from the outside, the less likely we are to solve our problems ourselves.