"The pea hybrids form eggs and pollen cells which, in their constitution, represent in equal numbers all constant forms resulting from the combination of traits united through fertilization."

"I hope that my experiments will furnish a new basis for the study of the history of the organic forms."

"The constant characters which appear in the various generations of a hybrid are those which are transmitted unchanged from the parental plants."

"The monastery garden is my laboratory, and the pea plants are my teachers."

"Thus, on the average, among four plants two have the hybrid trait Aa, one the parental trait A, and the other the parental trait a. Therefore, 2Aa+ A +a or A + 2Aa + a is the empirical simple series f…"