The truth is revealed by removing things that stand in its light, an art not unlike sculpture, in which the artist creates, not by building, but by hacking away.
They enter, locking themselves in, descend the rugged steps, and are down in the Crypt. The lantern is not wanted, for the moonlight strikes in at the groined windows, bare of glass, the broken frames for which cast patterns on the ground. The heavy pillars which support the roof engender masses of black shade, but between them there are lanes of light.
For I did not know that the soul needs to be enlightened by light from outside itself, so that it can participate in truth, because it is not itself the nature of truth.
...those experiments be not only esteemed which have an immediate and present use, but those principally which are of most universal consequence for invention of other experiments, and those which give more light to the invention of causes; for the invention of the mariner's needle, which giveth the direction, is of no less benefit for navigation than the invention of the sails, which give the motion.
Do not become the candle that gives light to others but itself remains in darkness. Do not follow the desires of your lower self. Should the Lord wish, He himself will pick you out and prompt you to be a source of guidance. He Himself shall endow you with the inner strength to endure the changes of fortune and will instill within you infinite wisdom.
[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