"I am enough of an artist to draw freely upon my imagination. Imagination is more important than knowledge. Knowledge is limited. Imagination encircles the world." "The significant problems we have cannot be solved at the same level of thinking with which we created them." “There are only two ways to live your life. One is as though nothing is a miracle. The other is as though everything is a miracle.” " Insanity is doing the same thing over and over again and expecting different results." "Two things are infinite: the universe and human stupidity; and I'm not sure about the universe." "The important thing is not to stop questioning; curiosity has its own reason for existing." "Human knowledge and skills alone cannot lead humanity to a happy and dignified life. Humanity has every reason to place the proclaimers of high moral standards and values above the discoverers of objective truth....