"We have no right to assume that any physical laws exist, or if they have existed up to now, that they will continue to exist in a similar manner in the future."
Max Planck, a German physicist, is considered to be the founder of quantum theory,
and one of the most important physicists of the twentieth century. Planck made many
contributions to theoretical physics, but his fame rests primarily on his role as originator
of the quantum theory. This theory revolutionized our understanding of atomic and
subatomic processes, just as Albert Einstein's theory of relativity revolutionized our
understanding of space and time. Together they constitute the fundamental theories of
20th-century physics. His discoveries have led to industrial and military applications that
affect every aspect of modern life.