The question that will decide our destiny is not whether we shall expand into space. It is: shall we be one species or a million? A million species will not exhaust the ecological niches that are awaiting the arrival of intelligence.

It's as great a part of the human adventure to invent things as to understand them. John Randall wasn't a great scientist, but he was a great inventor. There's been lots more like him, and it's a shame they don't get Nobel Prizes.

Many of the technologies that are now racing ahead most rapidly, replacing human workers in factories and offices with machines, making stockholders richer and workers poorer, are indeed tending to accentuate the existing inequalities in the distribution of wealth.

The marketplace judges technologies by their practical effectiveness, by whether they succeed or fail to do the job they are designed to do.

A lot of us were wondering, what is Trump really going to be like? He used to support Democrats and have various views earlier in his life about politics.

The American people expect and deserve a government that works and leaders who work together.

Therefore, the question is not whether such democratization is possible, but instead how to meet the yearning of the masses in the Middle East for democracy; in other words, how to achieve democratization in the Middle East.

The economy is terrible it's been terrible for years now, and the reason it's bad is not because of a debt-ceiling vote. The reason it's bad is because we have people who believe that by making government bigger by keeping people on unemployment checks and on welfare we're going to dig us out of this mess.