Niels Bohr

The opposite of a fact is falsehood, but the opposite of one profound truth may very well be another profound truth.

A physicist is just an atom's way of looking at itself.

An expert is a man who has made all the mistakes which can be made, in a narrow field.

Technology is characterized by constant change, rapid innovation, creative destruction, and revolutionary products.

Deep down, there is in the substance of the cosmos a primordial disposition, sui generis, for self-arrangement and self-involution.

Why do men fight who were born to be brothers?