Those who have most at stake in the old culture, or are most rigid in their beliefs, try to summon people back to the old ideas.'

Those who have most at stake in the old culture, or are most rigid in their beliefs, try to summon people back to the old ideas.'

Your past is not your potential. In any hour you can choose to liberate the future.

The most disturbing and wasteful emotions in modern life, next to fright, are those which are associated with the idea of blame, directed against the self or against others.

...As Thomas Kuhn pointed out in The Structure of Scientific Revolutions, new scientific theories in any field are regarded with skepticism because scientists become attached to the old perspective earlier in their careers.

Although most of us are complacent in our assumption that science is gaining on the unknown, scientists are acknowledging that man's own brain is complex beyond any hope of complete understanding.

We cannot leave the trap until we know we are in it.