Quote by Ivan Pavlov

"Science demands from a man all his life. If you had two lives they would not be enough for you."

"The great orchestration of the conditional reflex is the highest nervous activity of animals."

"Consciousness is just how the brain labels the neural correlates of attention."

"Do not pursue pleasure, as you would chase a butterfly. Let pleasure come to you."

"I believe in working hard for what you want."

"Never underestimate the power of determination."

"I don't need a reason to fight."

"The most important thing is the mission. Nothing else matters."