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

"I was taught that the way of progress was neither swift nor easy."

"Radium is not to enrich any one. It is an element; it is for all people."

"Nothing in life is to be feared, it is only to be understood. Now is the time to understand more, so that we may fear less."

"The older one gets, the more one feels that the only thing that matters is to do one's duty."