Wilhelm Johannsen

"Knowledge of heredity leads to power over life."

"Nature never errs in her hereditary calculations."

"The gene is the atom of biology."

"Life is a continuous process of hereditary expression."

"Research into heredity is research into the meaning of life."

"Nature's variety comes from nature's unity."

"Selective breeding demonstrates hereditary principles."

"The organism is nature's poem."

"Heredity binds all living things together."

"Science is the systematic pursuit of natural truth."

"Life continues because heredity is reliable."

"Nature provides the variations that selection chooses from."

"The study of genes is the study of life's code."

"Heredity is nature's memory across generations."

"Every organism is a masterpiece of hereditary precision."

"The future depends on understanding heredity today."

"Life is the ultimate expression of natural law."

"Genetics reveals the unity underlying all diversity."

"Nature is the standard by which all things are measured."

"Heredity is the thread that connects all generations."

"Science without observation is mere philosophy."

"The organism lives according to its hereditary nature."

"Nature's principles are eternal and unchanging."

"Heredity explains the similarities between parents and offspring."

"Life is stable because heredity is faithful."

"The gene is nature's instruction to the organism."

"Nature's order is reflected in every living thing."

"Understanding heredity is understanding ourselves."

"The hereditary principle is the foundation of all biology."

"Life expresses itself according to its hereditary blueprint."