On one occasion when [William] Smart found him engrossed with his fundamental theory, he asked Eddington how many people he thought would understand what he was writing-after a pause came the reply, 'Perhaps seven.'

Electrical force is defined as something which causes motion of electrical charge; an electrical charge is something which exerts electric force.

Whether in the intellectual pursuits of science or in the mystical pursuits of the spirit, the light beckons ahead, and the purpose surging in our nature responds.

Don't believe the results of experiments until they're confirmed by theory.

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

There is no space without aether, and no aether which does not occupy space.

The electron, as it leaves the atom, crystallises out of Schrodinger's mist like a genie emerging from his bottle.