"It followed from the special theory of..." - Quote by Albert Einstein
It followed from the special theory of relativity that mass and energy are both but different manifestations of the same thing - a somewhat unfamiliar conception for the average mind. Furthermore, the equation E = mc², in which energy is put equal to mass, multiplied by the square of the velocity of light, showed that very small amounts of mass may be converted into a very large amount of energy and vice versa.
More by Albert Einstein
“All that is valuable in human society depends upon the opportunity for development accorded the individual.”
“The individual feels the futility of human desires and aims and the sublimity and marvelous order which reveal themselves both in nature and in the world of thought.”
“Great spirits have always found violent opposition from mediocre minds. The latter cannot understand it when a man does not thoughtlessly submit to hereditary prejudices but honestly and courageously uses his intelligence.”
More on Science
“Freedom [is] the first-born daughter of science”
“We must be careful not to confuse data with the abstractions we use to analyse them.”
“Astronomy is a cold, desert science, with all its pompous figures,-depends a little too much on the glass-grinder, too little on the mind. 'T is of no use to show us more planets and systems. We know already what matter is, and more or less of it does not signify.”
More on Physics
“The gravity is the first thing which you don't think”
“If you are in a spaceship that is traveling at the speed of light, and you turn on the headlights, does anything happen?”
“[Max Planck] was one of the finest people I have ever known... but he really didn't understand physics, [because] during the eclipse of 1919 he stayed up all night to see if it would confirm the bending of light by the gravitational field. If he had really understood [general relativity], he would have gone to bed the way I did”