Those who have experienced the most, have suffered so much that they have ceased to hate. Hate is more for those with a slightly guilty conscience, and who by chewing on old hate in times of peace wish to demonstrate how great they were during the war.

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.

Man invents the most inhuman armaments to assault others so like himself that uniforms are needed to distinguish between friend and foe.

Progress is man's ability to complicate simplicity.

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

In a city a man may feel second to none. But alone in the immensity of the universe, among all the creatures that preceded man and built up the human species, even a most fervent atheist will wonder if Darwin found the visible road but not the invisible mechanism.

It is progress when a centuries-old oak is cut down to give space for a road sign.