"Proclaim human equality as loudly as you like, Witless will serve his brother."

"In science, as in art, and, as I believe, in every other sphere of human activity, there may be wisdom in a multitude of counsellors, but it is only in one or two of them."

"The man of science has learned to believe in justification, not by faith, but by verification."

"Time, whose tooth gnaws away everything else, is powerless against truth."

"The stoutest timber is forged in the fiercest gales, not in the sheltered grove. Such is the immutable nature of understanding."

"Energy directed with unwavering focus can bend the arc of destiny. Such is the immutable nature of understanding."

"Good breeding is the result of good sense, some good nature, and a little self-denial for the sake of others."

"He who seeks peace must remember that the river of time shapes the stones of destiny."