"The experimenter dealing with nature faces an outside and often hard world. Natures' curriculum cannot be changed."

"Experimental science is a craft and an art, and part of the art is knowing when to end a fruitless experiment. There …"

"It is always a good plan for a speculative experimenter to have two experiments going, or at least one going and one …"

"Common elements of creativity are originality and imagination. Creativity is intertwined with the freedom to design, …"

"For every good idea, expect to have five, ten, twenty wrong or useless ideas. You cannot avoid the bad ideas if you k…"

"You may turn a bad idea into a good idea — don't kill the bad idea prematurely. A bad idea can evolve into a good idea."

"I always look for colleagues who are smart, and who know a lot in many fields. The obvious advantage is that he or sh…"

"The best colleagues are those who will think about your ideas, who will talk with you and offer insight, constructive…"

"It is very unlikely that we would drive to extinction any native Martian microorganisms in the process of extending t…"

"We do not need a lunar-orbiting station to go to the Moon. We do not need such a station to go to Mars. We do not nee…"