"A man is born to work, to suffer and to fight; he who doesn't, must perish."

"From an incandescent mass we have originated, and into a frozen mass we shall turn. Merciless is the law of nature, and rapidly and irresistibly we are drawn to our doom."

"A new idea must not be judged by its immediate results."

"It is not a death ray in the sense that it kills. It is a weapon that will make war impossible."

"I do not think there is any thrill that can go through the human heart like that of the inventor as he sees some creation of the brain unfolding to success… Such emotions make one forget food, sleep, …"