“I believe in intu­ition and inspi­ra­tion. Imagination is more impor­tant than knowl­edge. For knowl­edge is lim­ited, whereas imag­i­na­tion embraces the entire world, stim­u­lat­ing progress, giv­ing birth to evo­lu­tion. It is, strictly speak­ing, a real fac­tor in sci­en­tific research.”