"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"
This quote is written / told by Ivan Pavlov between September 14, 1849 and February 27, 1936. He/she was a famous Psychologist from Russia.
The author also have 21 other quotes.
"A lawyer without history or literature is a mechanic, a mere working mason; if he possesses some knowledge of these, he may venture to call himself an architect"
