It is a curious thing: man, the centre and creator of all science, is the only object which our science has not yet succeeded in including in a homogeneous representation of the universe. We know the history of his bones, but no ordered place has yet been found in nature for his reflective intelligence.

I think that man has a fundamental obligation to extract from himself and from the earth all that it can give; and this obligation is all the more imperative that we are absolutely ignorant of what limits - they may still be very distant - God has imposed on our natural understanding and power.

Progressively saved by the machine from the anxieties that bound his hands and mind to material toil, relieved of a large part of his work and compelled to an ever-increasing speed of action by the devices which his intelligence cannot help ceaselessly creating and perfecting, man is about to find himself abruptly plunged into idleness.

Religion and science are the two conjugated faces or phases of one and the same complete act of knowledge - the only one which can embrace the past and future of evolution and so contemplate, measure and fulfil them.

Land is a great example of how we can manage and invest in sustainable infrastructure for economic, social, and environmental gains. Its use - and misuse - is at the heart of the challenge for food, fuel, and fibre.

I have total faith in the next generation. Looking at their response to climate change is really interesting and, again, that’s the power of social media at its best, to mobilise people."

Sculptures created from found materials like ice and thorns, driftwood, and even bleached kangaroo bones all presuppose that artistic design will yield to the cycles of time and climate, whether over an hour or a decade.

While it is important to maintain a balanced approach to solving our nation's energy problems, we must commit ourselves to recognize some areas as 'off limits,' and the Artic National Wildlife Reserve is a national symbol of that commitment.