The most important tool of the theoretical physicist is his wastebasket.

The magic of compounding interest is truly the eighth wonder of the world!

Creating a new theory is not like destroying an old barn and erecting a skyscraper in its place. It is rather like climbing a mountain and gaining new and wider views.

The words of language, as they are written or spoken, do not seem to play any role in my mechanism of thought. The physical entities which seem to serve as elements in thought are certain signs and more or less clear images.

There is not the slightest indication that nuclear energy will ever be obtainable. It would mean that the atom would have to be shattered at will.

I never think of the future - it comes soon enough.

Brief is this existence, as a visit in a strange house. The path to be pursued is poorly lit by a flickering consciousness.