"On the left-hand side of the field..." - Quote by Albert Einstein
On the left-hand side of the field equation we may add the fundamental tensor guv, multiplied by a universal constant, -λ, at present unknown, without destroying the general covariance.
More by Albert Einstein
“All that's different about me is that I still ask the questions most people stopped asking at age five.”
“Learning is the beginning of wealth. Searching and learning is where the miracle process all begins. The great breakthrough in your life comes when you realize it that you can learn anything you need to learn to accomplish any goal that you set for yourself. This means there are no limits on what you can be, have or do.”
“We [Jews] have no other means of self-defense than our solidarity”
More on Physics
“[When asked "Dr. Einstein, why is it that when the mind of man has stretched so far as to discover the structure of the atom we have been unable to devise the political means to keep the atom from destroying us?"] That is simple, my friend. It is because politics is more difficult than physics.”
“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.”
“What lead me more or less directly to the special theory of relativity was the conviction that the electromotive force acting on a body in motion in a magnetic field was nothing else but an electric field.”
More on Science
“Nature intended me for the tranquil pursuits of science by rendering them my supreme delight.”
“Galileo had already made a significant beginning toward a knowledge of the law of motion. He discovered the law of inertia and the law of bodies falling freely in the gravitational field of the earth.”
“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.”