“You are capable of more than you know. Choose a goal that seems right for you and strive to be the best, however hard the path. Aim high. Behave honorably. Prepare to be alone at times, and to endu...”

“If those committed to the quest fail, they will be forgiven. When lost, they will find another way. The moral imperative of humanism is the endeavor alone, whether successful or not, provided the e...”

“Nature holds the key to our aesthetic, intellectual, cognitive and even spiritual satisfaction.”

“When you have seen one ant, one bird, one tree, you have not seen them all.”

“Political ideology can corrupt the mind, and science.”

“Blind faith, no matter how passionately expressed, will not suffice. Science for its part will test relentlessly every assumption about the human condition.”

“I do not know what I may appear to the world, but to myself I seem to have been only like a boy playing on the sea-shore, and diverting myself in now and then finding a smoother pebble or a prettie...”

“To know the history of science is to recognize the mortality of any claim to universal truth. ”

“The scientist only imposes two things, namely truth and sincerity, imposes them upon himself and upon other scientists.”

“No man needs sympathy because he has to work, because he has a burden to carry. Far and away the best prize that life offers is the chance to work hard at work worth doing.”

“All my life I've been surrounded by people who are smarter than I am, but I found I could always keep up by working hard.”

“Loveless work, boring work, work valued only because others haven't got even that much, however loveless and boring--this is one of the harshest human miseries.”