Borders I have never seen one. But I have heard they exist in the minds of some people.

Any scientist can testify that a dead ocean means a dead planet .... No national law, no national precautions can save the planet. The ocean, more than any other part of our planet, ... is a classic example of the absolute need for international global action.

Civilization grew in the beginning from the minute that we had communication - particularly communication by sea that enabled people to get inspiration and ideas from each other and to exchange basic raw materials.

I have never been able to grasp the meaning of time. I don't believe it exists. I've felt this again and again, when alone and out in nature. On such occasions, time does not exist. Nor does the future exist.

It is also rarer to find happiness in a man surrounded by the miracles of technology than among people living in the desert of the jungle and who by the standards set by our society would be considered destitute and out of touch.

...arranging the journey was so difficult. Getting home again was much easier.

Progress is man's ability to complicate simplicity.