Whatever a man imagines he can attain, if he doesn't become too arrogant and encroach on the rights of the gods.

Man has risen so far above all other species that he competes in ways unique in nature. He fights by means of complicated weapons; he fights for ends remote in time.

Without death there would be no awareness of life, and the recurring selection and renewal that has caused life's progress would be ended.

Man is a mixture of desires that extend beyond his knowledge and often result in action conflicting with rationality.

Ideas are like seeds, apparently insignificant when first held in the hand. Once firmly planted, they can grow and flower into almost anything at all, a cornstalk, or a giant redwood, or a flight across the ocean. Whatever a man imagines, he can achieve.

As civilization advances, man grows unconscious of the primitive elements of life; he is separated from them by his perfection of material techniques.

Aviation seems almost a gift from heaven to those Western nations who were already the leaders of their era, strengthening their leadership, their confidence, their dominance over other peoples.