Be less curious about people and more curious about ideas.

Stability can only be attained by inactive matter.

We must not forget that when radium was discovered no one knew that it would prove useful in hospitals.

First principle: never to let one's self be beaten down by persons or by events.

Now is the time to understand more, so we fear less.

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

Scientist believe in things, not in person