[Heisenberg's seminal 1925 paper initiating quantum mechanics marked] one of the great jumps—perhaps the greatest—in the development of twentieth century physics.
![[Heisenberg's seminal 1925 paper initiating quantum mechanics marked] one of the great jumps—perhaps the greatest—in the development of twentieth century physics.](http://cdn.quoteddaily.com/images/abraham-pais/heisenbergs-seminal-1925-paper-initiating-quantum-mechanics-marked-one-of-the-great-jumpsperhaps-the-greatestin-the-development-of-twentieth-century.jpg)
[Heisenberg's seminal 1925 paper initiating quantum mechanics marked] one of the great jumps—perhaps the greatest—in the development of twentieth century physics.