Nothing is impossible in this world. Firm determination, it is said, can move heaven and earth. Things appear far beyond one's power, because one cannot set his heart on any arduous project due to want of strong will.
Bio: Norman John Berrill was an English marine biologist. He was born in Bristol and received his B.Sc. degree from the University of Bristol and his Ph.D. and D.Sc. from the University of London.