Life is and will ever remain an equation incapable of solution, but it contains certain known factors
Polish and naturalized-French physicist and chemist who conducted pioneering research on radioactivity. She was the first woman to win a Nobel Prize, the first person and only woman to win twice, and the only person to win a Nobel Prize in two different sciences.
Radium is not to enrich any one. It is an element; it is for all people
What one man calls God. another calls the laws of physics
One must be sane to think clearly, but one can think deeply and be quite insane
Be alone, that is the secret of invention; Be alone, that is when ideas are born
If your hate could be turned into electricity it would light up the whole world
Nothing in life is to be feared, it is only to be understood
The first method for estimating the intelligence of a ruler is to look at the men he has around him.
I would rather walk with a friend in the dark, than alone in the light
Doubt is the origin of wisdom
There has to be evil so that good can prove its purity above it
The soul is neither inside nor outside the body; neither proximate to nor separate from it
I hold that while man exists, it is his duty to improve not only his own condition, but to assist in ameliorating mankind
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