The step between genius and insanity is very short.

Why is it that no one understands me and everybody likes me

I think 99 times and find nothing. I stop thinking, swim in the silence, and the truth comes to me.

Marie Curie is, of all celebrated beings, the only one whom fame has not corrupted.

It stands to the everlasting credit of science that by acting on the human mind it has overcome man's insecurity before himself and before nature.

Whoever is devoid of the capacity to wonder, whoever remains unmoved, whoever cannot contemplate or know the deep shudder of the soul in enchantment, might just as well be dead for he has already closed his eyes upon life.

Reason is intuition's servant.