“The generalized theory of relativity has furnished still more remarkable results. This considers not only uniform but also accelerated motion. In particular, it is based on the impossibility of distinguishing an acceleration from the gravitation or other force which produces it. Three consequences of the theory may be mentioned of which two have been confirmed while the third is still on trial: (1) It gives a correct explanation of the residual motion of forty-three seconds of arc per century of the perihelion of Mercury. (2) It predicts the deviation which a ray of light from a star should experience on passing near a large gravitating body, the sun, namely, 1".7. On Newton's corpuscular theory this should be only half as great. As a result of the measurements of the photographs of the eclipse of 1921 the number found was much nearer to the prediction of Einstein, and was inversely proportional to the distance from the center of the sun, in further confirmation of the theory. (3) The theory predicts a displacement of the solar spectral lines, and it seems that this prediction is also verified.”
“If you've been up all night and cried till you have no more tears left in you - you will know that there comes in the end a sort of quietness. You feel as if nothing was ever going to happen again.”
“Seriously, if you always put limits on what you can do, physical or anything else; it'll spread over into the rest of your life. It'll spread into your work, into your morality, into your entire being... There are NO limits. There are plateus, but you must not stay there, you must go beyond them. If it kills you, it kills you. A man must constantly exceed his level.”
“Don’t take anything for granted, not even the fact that you were able to get out of bed this morning without any help. When you opened your eyes, you could see. When you told your legs to walk, they obeyed. When your spouse said, “I love you,” you could hear it. When your child gave you a hug, you could feel that embrace. When you ate breakfast, you could taste the food.”
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