Natural Science is a subject which a man cannot learn by paying for teachers. He must teach it himself, by patient observation, by patient common sense.


Scientific Lectures and Essays, Preface (p. 16), Macmillan & Co Ltd. 1893


Natural Science is a subject which a man cannot learn by paying for teachers. He must teach it himself, by patient observation, by patient common...

Natural Science is a subject which a man cannot learn by paying for teachers. He must teach it himself, by patient observation, by patient common...

Natural Science is a subject which a man cannot learn by paying for teachers. He must teach it himself, by patient observation, by patient common...

Natural Science is a subject which a man cannot learn by paying for teachers. He must teach it himself, by patient observation, by patient common...