Experiment is the only means of knowledge at our disposal

Experiment is the only means of knowledge at our disposal. Everything else is poetry, imagination.
Max Planck
April 22, 1858 – October 3, 1947
Max Karl Ernst Ludwig Planck, was a German theoretical physicist whose discovery of energy quanta won him the Nobel Prize in Physics in 1918. Planck made many contributions to theoretical physics, but his fame as a physicist rests primarily on his role as the originator of quantum theory, which revolutionized human understanding of atomic and subatomic processes.