Buying art is not understanding art.

But I believe above all that I wanted to build the palace of my memory, because my memory is my only homeland.

What does the artist do? He draws connections. He ties the invisible threads between things. He dives into history, be it the history of mankind, the geological history of the Earth or the beginning and end of the manifest cosmos.

I believe in empty spaces; they're the most wonderful thing.

I believe that it is impossible to stop people from using the fossil fuels, so we need to develop technologies which allow us to use them without creating environmental havoc on the planet.

The world can't have a global solution to climate change with U.S. action alone; and the world can't have a global solution without U.S. action.

As foreign minister of Norway, I learnt how natural changes provoked by climate change are creating new sources of political instability.

We might be more inclined to think about the longer term if we were more aware of what is happening around us. Perhaps daily weather forecasts could include a few basic facts about the Earth's vital signs or details of where climate change is increasing the likelihood of damaging weather?