“Perfect as the wing of a bird may be, it will never enable the bird to fly if unsupported by the air. Facts are the air of science. Without them a man of science can never rise.”

About Ivan Pavlov

Physiologist • Russian

Ivan Petrovich Pavlov was a renowned Russian physiologist whose groundbreaking research profoundly influenced the fields of physiology and psychology. He is most famous for his discovery of the principle of classical...