"The brain is a most wonderful machine, and I have no doubt that it will one day be understood."

"I wish to combine the poetical with the mathematical."

"I am never so知其不可为而为之 happy as when I am really engaged in some good hard thinking."

"I shall, in due time, be a poetical scientist."

"I believe that science and art are intimately connected, and that both are essential for human progress."