In 80% of the world, energy will be bought where it is economic. You have to help the rest of the world get energy at a reasonable price.

Knowledge cultivates your seeds and does not sow in your seeds.

I have no fear that the result of our experiment will be that men may be trusted to govern themselves without a master.

Oppression that is clearly inexorable and invincible does not give rise to revolt but to submission.

The decline of violence isn't a steady inclined plane from an original state of maximal and universal bloodshed. Technology, ideology, and social and cultural changes periodically throw out new forms of violence for humanity to contend with.