Great discoveries are made accidentally less often than the populace likes to think.

If the hand be held between the discharge-tube and the screen, the darker shadow of the bones is seen within the slightly dark shadow-image of the hand itself... For brevity's sake I shall use the expression 'rays' and to distinguish them from others of this name I shall call them 'X-rays'.

I did not think I experimented.

There is much to do, and I am busy, very busy.

For me photography was the means to the end, but they made it the most important thing. (On the discovery of X-ray photography.)