"The traits of parents do not blend in their offspring but remain distinct."

"The value and utility of any experiment are determined by the fitness of the material to the purpose for which it is used."

"The numerical relations of the different forms in the successive generations are constant."

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

"My experiments with single traits all lead to the same result: that from the seeds of hybrids, plants are obtained half of which in turn carry the hybrid trait (Aa), the other half, however, receive t…"