“Both art and science are bent on the understanding of the forces that shape existence, and both call for a dedication to what is. Neither of them can tolerate capricious subjectivity because both are subject to their criteria of truth. Both require precision, order, and discipline because no comprehensible statement can be made without these. Both accept the sensory world as what the Middle Ages called signatura regrum, the signature of things, but in quite different ways.”

“... the preacher speaks both the word of tragedy and the word of comedy because they are both of them the truth and because Jesus speaks them both...”

“In a world in which everything is subject to the passing of time, art alone is both subject to time and yet victorious over it.”

“Science requires both observation and comprehension. Without observation there are no facts to be comprehended; without comprehension science is mere documentation. The basis for comprehension is theory, and the language of theoretical science is mathematics. Theory is constructed on a foundation of hypothesis; the fewer the hypotheses needed to explain existing observations and predict new phenomena, the more ‘elegant’ the theory”

“The problem with patience and discipline is that it requires both of them to develop each of them.”

“[Pierre] involuntarily started comparing these two men, so different and at the same time so similar, because of the love he had for both of them, and because both had lived and both had died.”