The well-meaning contention that all ideas have equal merit seems to me little different from the disastrous contention that no ideas have any merit.

Thus the recent rapid evolution of human intelligence is not only the cause of but also the only conceivable solution to the many serious problems that beset us.

Cosmos is a Greek word for the order of the universe. It is, in a way, the opposite of Chaos. It implies the deep interconnectedness of all things. It conveys awe for the intricate and subtle way in which the universe is put together.

She had studied the universe all her life, but had overlooked its clearest message: For small creatures such as we the vastness is bearable only through love.

The nitrogen in our DNA, the calcium in our teeth, the iron in our blood, the carbon in our apple pies were made in the interiors of collapsing stars. We are made of starstuff.

The total number of stars in the Universe is larger than all the grains of sand on all the beaches of the planet Earth.

All of the books in the world contain no more information than is broadcast as video in a single large American city in a single year. Not all bits have equal value.