The question of all questions for humanity, the problem which lies behind all others and is more interesting than any of them is that of the determination of man's place in nature and his relation to the cosmos. Whence our race came, what sorts of limits are set to our power over nature and to nature's power over us, to what goal we are striving, are the problems which present themselves afresh, with undiminished interest, to every human being born on earth......................T.H.Huxley 1863