What is a scientist after all? It is a curious man looking through a keyhole, the keyhole of nature, trying to know what's going on.

Mankind has probably done more damage to the Earth in the 20th century than in all of previous human history.

The best way to observe a fish is to become a fish.

We have to prepare for what life could become in 40 years. We need to outline what is possible and what is impossible with the non-renewable resources of the Earth. What role will technological improvement play? Taking all this into account, what kind of life can we produce in the best way for 10 billion people? That's a problem that needs to be solved.

With earth's burgeoning human population to feed we must turn to the sea with understanding and new technology. We need to farm it as we farm the land.

When one man, for whatever reason, has the opportunity to lead an extraordinary life, he has no right to keep it to himself.

Man has only to sink beneath the surface and he is free.