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

"It requires indeed some courage to undertake a labor of such far-reaching extent."

"Man must contribute his minimum work of toil, and God gives the growth. Truly, the seed, the talent, the grace of God is there, and man has simply to work, take the seeds to bring them to the bankers."

"The laws of inheritance are mathematical in nature."

"That no generally applicable law of the formulation and development of hybrids has yet been successfully formulated can hardly astonish anyone who is acquainted with the extent of the task and who can…"