"Whether they will retain the characteristics of the hybrid, or whether they will show variations, will be determined by next year's observations."

"The traits of living things are governed by unseen laws."

"The experiments have been carried out on a small scale, but the results are clear and unambiguous."

"You should regard the numerical expressions as being only empirical, because they can not be proved rational."

"The characters which are transmitted from the parents to the offspring are constant and definite."