Gradualness and discipline. This is the most important thing. From the very beginning of your work, train yourself to the strictest gradualness in accumulating knowledge.
Постепенность и тренировка. Это самое главное. С самого начала своей работы приучите себя к строгой постепенности в накоплении знаний.

Psychologists
Ivan Pavlov
Russian and Soviet physiologist (1849-1936). He won the 1904 Nobel Prize for digestive physiology, and his conditioned reflex became the bedrock on which Watson and Skinner built behaviorism.
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Ivan Pavlov's Other Quotes
A conditioned reflex is a temporary connection between any agent of the external world and a definite activity of the organism.
If you want new ideas, read old books.
Never think that you already know all. However highly you are appraised, always have the courage to say of yourself: I am ignorant.
I will not sacrifice even the hind leg of a frog to the kind of social experiment that the Communist government is conducting in Russia.
Related Quotes
It is hard to retain what you learn unless you practice it.
-- Seneca
Reading maketh a full man; conference a ready man; and writing an exact man.
-- Francis Bacon
Failure is simply the opportunity to begin again, this time more intelligently.
-- Henry Ford
Your most unhappy customers are your greatest source of learning.
-- Bill Gates
It's fine to celebrate success, but it is more important to heed the lessons of failure.
-- Bill Gates
Success is a lousy teacher. It seduces smart people into thinking they can't lose.
-- Bill Gates