"Be less curious about people and more curious about ideas."

"A scientist must be a child. He must be curious. He must be eager to learn. He must be willing to make mistakes."

"The older one gets, the more one feels that the present moment must be enjoyed, comparable to a state of grace."

"I had to work for my living, and I had to study. It was a very hard time for me."

"My mind is entirely absorbed by my studies, and I consider it a great privilege to be able to devote myself to them."