Only by observing this condition would the results of our work be regarded as fully conclusive and as having elucidated the normal course of the phenomena. Ivan Pavlov More Quotes by Ivan Pavlov More Quotes From Ivan Pavlov What can I wish to the youth of my country who devote themselves to science? ...Thirdly, passion. Remember that science demands from a man all his life. If you had two lives that would not be enough for you. Be passionate in your work and in your searching. Ivan Pavlov Our experiments not only proved the existence of a nervous apparatus in the above-mentioned glands, but also disclosed some facts clearly showing the participation of these nerves in normal activity. Ivan Pavlov some participation nervous facts