Shuffling is the only thing which Nature cannot undo.

Human life is proverbially uncertain; few things are more certain than the solvency of a life-insurance company.

We have found that where science has progressed the farthest, the mind has but regained from nature that which the mind put into nature.

An ocean traveler has even more vividly the impression that the ocean is made of waves than that it is made of water.

Probably the simplest hypothesis... is that there may be a slow process of annihilation of matter.

It is also a good rule not to put overmuch confidence in the observational results that are put forward until they are confirmed by theory.

Something unknown is doing we don't know what-that is what our theory amounts to.