“Happiness is not the reward of virtue, but virtue itself.”
“I have striven not to laugh at human actions, not to weep at them, nor to hate them, but to understand them.”
“All things excellent are as difficult as they are rare.”
“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.”
“Science is a way of thinking much more than it is a body of knowledge.”
“Absence of evidence is not evidence of absence.”
“If you wish to make an apple pie from scratch, you must first invent the universe.”
“We are made of star stuff.”
“Somewhere, something incredible is waiting to be known.”
“Extraordinary claims require extraordinary evidence.”
“I have come to believe that a great teacher is a great artist.”
“It is the nature of man to rise to greatness if greatness is expected of him.”
“People don’t take trips—trips take people.”
“A journey is like marriage. The certain way to be wrong is to think you control it.”
“Ideas are like rabbits. You get a couple and learn how to handle them, and pretty soon you have a dozen.”
“A sad soul can kill you quicker than a germ.”
“I wonder how many people I’ve looked at all my life and never seen.”
“And now that you don’t have to be perfect, you can be good.”
“The best doctors in the world are Doctor Diet, Doctor Quiet, and Doctor Merryman.”