There is however another purpose to which academies contribute. When they consist of a limited number of persons eminent for their knowledge it becomes an object of ambition to be admitted on their list.

As long as acquiring knowledge is the educational goal of schools educational opportunities will be limited as they are now to affluent families.

When knowledge is limited - it leads to folly... When knowledge exceeds a certain limit it leads to exploitation.

Science fiction writers I am sorry to say really do not know anything. We can't talk about science because our knowledge of it is limited and unofficial and usually our fiction is dreadful.

Men are limited by the knowledge of their minds the worth of their characters and the principles upon which they are building their lives.

People don't want to believe that technology is broken. Pharmaceuticals robotics artificial intelligence nanotechnology - all these areas where the progress has been a lot more limited than people think. And the question is why.

Terrorists continue to exploit divisions between law enforcement and the intelligence communities that limit the sharing of vital counterterrorism information.

Despite our very recent appearance on the planet humanity combines arrogance with increasing material demands even as we become more numerous. Our toughness is a delusion. Have we the intelligence and discipline to vigilantly guard against our tendency to grow without limit?

In intelligence work there are limits to the amount of information one can share. Confidentiality is essential.

Stupidity is infinitely more fascinating that intelligence. Intelligence has its limits while stupidity has none.