Ivan Pavlov

“While you are experimenting, do not remain content with the surface of things.”

“Learn the ABC of science before you try to ascend to its summit.”

“Gradualness, gradualness, and gradualness. From the very beginning of your work, school yourselves to severe gradualness in the accumulation of knowledge.”

“Don't become a mere recorder of facts, but try to penetrate the mystery of their origin.”

“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.”

“School yourselves to demureness and patience. Learn to do the rough work of science.”

“Learn, compare, collect the facts.”

“Only science, exact science about human nature itself... will deliver man from his present gloom, and will purge him from his contemporary shame in the sphere of interhuman relations.”

“Never think that you already know all. However highly you are appraised, always have the courage to say to yourself-I am ignorant.”

“It is not accidental that all phenomena of human life are dominated by the search for daily bread - the oldest link connecting all living things, man included, with the surrounding nature.”

“Thirdly, passion. Remember that science demands from a man his whole life.”

“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.”

“Secondly, modesty. Never think that you already know everything.”