As for the forces, electromagnetism and gravity we experience in everyday life. But the weak and strong forces are beyond our ordinary experience. So in physics, lots of the basic building blocks take 20th- or perhaps 21st-century equipment to explore. – Edward Witten
Grown men can learn from very little children for the hearts of little children are pure. Therefore, the Great Spirit may show to them many things which older people miss. – Black Elk
