For in 1900 all electromagnetic radiation of longer wavelengths was already known at least to the extent that one could not seek in it the more striking characteristics of X-rays such as, for example, the strong penetrating power.
“To open the majority of peoples' minds to something new is difficult. I always think that, as long as it's funny underneath, then you can argue that a teaspoonful of sugar helps the medicine go down.”
“Poetry is of so subtle a spirit, that in the pouring out of one language into another it will evaporate.”