Overconsumption and overpopulation underlie every environmental problem we face today

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.

Buoyed by water, he can fly in any direction - up, down, sideways - by merely flipping his hand. Under water, man becomes an archangel.

If human civilization is going to invade the waters of the earth, then let it be first of all to carry a message of respect.

We forget that the water cycle and the life cycle are one.

The impossible missions are the only ones which succeed.

There was wildlife, untouched, a jungle at the border of the sea, never seen by those who floated on the opaque roof. Describing his early experience, in 1936, when a fellow naval officer, Philippe Tailliez, gave him goggles to see below the Mediterranean Sea surface.