"If one dives and returns to the surface inarticulate with amazement
and with a deep realisation of the marvel of what he has seen and
where he has been, then he deserves to go again and again.
If he is unmoved or disappointed, then there remains for him on earth
only a longer or shorter period of waiting for death; there can be
little worth while left in life for him."
- C. William Beebe (Half-Mile Down, 1935)