Thomas Hunt Morgan

"In each human being there is some possibility of development, and this possibility should be regarded as a sacred trust."

"The science of genetics has revealed to us the great truth that inheritance is the fundamental basis of life."

"Facts are the air of science. Without them you never can fly."

"The organism is not merely the sum of its parts; it is a unified whole."

"Chromosomes are the physical basis of heredity."

"We must observe nature carefully and record what we see without prejudice."

"The experimental method is the only reliable path to truth."

"Every discovery raises new questions."

"Science does not attempt to explain why things happen; it only attempts to describe how they happen."

"The future belongs to those who understand the laws of inheritance."

"Genetics is not destiny; it is possibility."

"In the study of living things, observation must precede theory."

"The gene is the unit of heredity."

"We are all connected through the bonds of heredity and environment."

"Truth in science comes not from authority but from evidence."

"The work of the scientist is never finished."

"Nature reveals her secrets only to those who study her patiently."

"Mutations are the raw material of evolution."

"We must question everything, even our most cherished beliefs."

"The microscope has opened new worlds to our understanding."

"Life is fundamentally about variation and selection."

"Through genetics, we understand our connection to all living things."

"The researcher must be humble before nature's complexity."

"Every organism carries within it the story of its ancestors."

"Science advances when we admit what we do not know."

"Heredity and environment work together in shaping the organism."

"The laws of inheritance are as immutable as the laws of physics."

"In the search for truth, patience is a virtue and persistence a necessity."

"Nature is the greatest teacher, if we learn to listen."

"The study of genetics reveals the unity underlying biological diversity."