John Gurdon

"In biological systems, as in life, second chances are rarer than we'd like to admit."

"The tadpole showed us that maturity is not destiny; it is merely a stage."

"To understand life, you must be willing to ask impertinent questions of nature."

"A cell knows its role, yet can be convinced otherwise. We are not so different."

"The environment speaks to the genome in a language we are only beginning to decode."

"What appears to be a limit in biology often reveals itself to be merely a threshold."

"The beauty of the egg lies in its humility and its power."

"I learned from frogs that complete transformation is possible, if you believe in it."

"The nuclear genome is a library; the egg cytoplasm is the librarian. Together, they create worlds."

"In science, as in life, the questions you ask determine the answers you receive."

"A cell can be reprogrammed. So, perhaps, can a person."

"The history of science is the history of people insisting on one more experiment."

"Biological memory is written in chemistry; it is neither absolute nor irreversible."

"The tadpole's journey from egg to adult mirrors our own journey toward becoming ourselves."

"To live is to accept uncertainty while pursuing clarity."

"The nucleus taught me that identity is a process, not a state."

"In the laboratory, as in nature, accidents often lead to discovery."

"The genetic code speaks the same language in all creatures; we are all distant cousins."

"What the egg can do, the scientist can study; what the scientist can study, the world can use."

"The cell's ability to renew itself is nature's greatest gift and its most profound secret."

"To advance science, you must sometimes abandon the safety of what is known."

"The tadpole's transformation is not miraculous; it is merely biology. And biology is miraculous."

"Every cell division is a choice, in its own chemical way. So is every moment of our lives."

"The egg nucleus showed us that information can be transferred, but never fully copied."

"In science, the impossible of one generation becomes the obvious of the next."

"A single experiment can change what an entire field believes possible."

"The cytoplasm's influence on the nucleus taught me that context determines fate."

"To be a scientist is to be in love with uncertainty and pursue it anyway."

"The frog's development is a book written in genes; we are slowly learning to read it aloud."

"What we call differentiation is nature's way of creating specialization from unity."